diff --git a/go/quickstep/src/com/android/quickstep/TaskOverlayFactoryGo.java b/go/quickstep/src/com/android/quickstep/TaskOverlayFactoryGo.java
index c997e52..253147d 100644
--- a/go/quickstep/src/com/android/quickstep/TaskOverlayFactoryGo.java
+++ b/go/quickstep/src/com/android/quickstep/TaskOverlayFactoryGo.java
@@ -50,8 +50,8 @@
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.BaseActivity;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.views.ArrowTipView;
 import com.android.quickstep.util.AssistContentRequester;
 import com.android.quickstep.util.RecentsOrientedState;
@@ -124,7 +124,7 @@
                 AssistContentRequester assistContentRequester) {
             super(taskThumbnailView);
             mFactoryContentRequester = assistContentRequester;
-            mSharedPreferences = Utilities.getPrefs(mApplicationContext);
+            mSharedPreferences = LauncherPrefs.getPrefs(mApplicationContext);
         }
 
         /**
@@ -151,7 +151,7 @@
             boolean isAllowedByPolicy = mThumbnailView.isRealSnapshot() && !isManagedProfileTask;
             getActionsView().setCallbacks(new OverlayUICallbacksGoImpl(isAllowedByPolicy, task));
             mTaskPackageName = task.key.getPackageName();
-            mSharedPreferences = Utilities.getPrefs(mApplicationContext);
+            mSharedPreferences = LauncherPrefs.getPrefs(mApplicationContext);
             checkSettings();
 
             if (!mAssistStructurePermitted || !mAssistScreenshotPermitted
diff --git a/lint-baseline-launcher3.xml b/lint-baseline-launcher3.xml
index 107a346..a9dc0c6 100644
--- a/lint-baseline-launcher3.xml
+++ b/lint-baseline-launcher3.xml
@@ -606,4 +606,20 @@
             column="61"/>
     </issue>
 
+    <issue
+        id="NewApi"
+        message="Call requires API level 33 (current min is 26): `android.app.Activity#getOnBackInvokedDispatcher`">
+        <location
+            file="packages/apps/Launcher3/src/com/android/launcher3/BaseActivity.java"
+            line="182"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 33 (current min is 26): `android.window.OnBackInvokedDispatcher#registerOnBackInvokedCallback`">
+        <location
+            file="packages/apps/Launcher3/src/com/android/launcher3/BaseActivity.java"
+            line="182"/>
+    </issue>
+
 </issues>
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 8182d41..eabe079 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -189,10 +189,10 @@
     <string name="allset_hint">Swipe up to go Home</string>
     <!-- Hint string at the bottom of "All Set" page for button navigation [CHAR LIMIT=NONE] -->
     <string name="allset_button_hint">Tap the home button to go to your home screen</string>
-    <!-- Description of "All Set" page on phones [CHAR LIMIT=NONE] -->
-    <string name="allset_description">You\u2019re ready to start using your phone</string>
-    <!-- Description of "All Set" page on tablets [CHAR LIMIT=NONE] -->
-    <string name="allset_description_tablet">You\u2019re ready to start using your tablet</string>
+    <!-- Description of "All Set" page on the user's device [CHAR LIMIT=NONE] -->
+    <string name="allset_description_generic">You\u2019re ready to start using your <xliff:g id="device" example="Pixel 6">%1$s</xliff:g></string>
+    <!-- A default device name to use in the description of the "All Set" page [CHAR LIMIT=NONE] -->
+    <string name="default_device_name">device</string>
     <!-- String linking to navigation settings on "All Set" page [CHAR LIMIT=NONE] -->
     <string name="allset_navigation_settings"><annotation id="link">System navigation settings</annotation></string>
 
diff --git a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
index 05b8167..0a2a9b3 100644
--- a/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
+++ b/quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java
@@ -305,7 +305,7 @@
      * Sets or updates the predicted items only once the hotseat becomes hidden to the user
      */
     private void applyPredictedItems(FixedContainerItems items) {
-        mPredictedItems = items.items;
+        mPredictedItems = new ArrayList(items.items);
         if (mPredictedItems.isEmpty()) {
             HotseatRestoreHelper.restoreBackup(mLauncher);
         }
diff --git a/quickstep/src/com/android/launcher3/model/PredictionUpdateTask.java b/quickstep/src/com/android/launcher3/model/PredictionUpdateTask.java
index bc3253f..e504141 100644
--- a/quickstep/src/com/android/launcher3/model/PredictionUpdateTask.java
+++ b/quickstep/src/com/android/launcher3/model/PredictionUpdateTask.java
@@ -30,12 +30,14 @@
 import androidx.annotation.NonNull;
 
 import com.android.launcher3.LauncherAppState;
-import com.android.launcher3.Utilities;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.model.BgDataModel.FixedContainerItems;
 import com.android.launcher3.model.QuickstepModelDelegate.PredictorState;
 import com.android.launcher3.model.data.AppInfo;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
@@ -59,7 +61,7 @@
         Context context = app.getContext();
 
         // TODO: remove this
-        Utilities.getDevicePrefs(context).edit()
+        LauncherPrefs.getDevicePrefs(context).edit()
                 .putBoolean(LAST_PREDICTION_ENABLED_STATE, !mTargets.isEmpty()).apply();
 
         Set<UserHandle> usersForChangedShortcuts =
@@ -68,7 +70,7 @@
                         .map(info -> info.user)
                         .collect(Collectors.toSet());
 
-        FixedContainerItems fci = new FixedContainerItems(mPredictorState.containerId);
+        List<ItemInfo> items = new ArrayList<>(mTargets.size());
         for (AppTarget target : mTargets) {
             WorkspaceItemInfo itemInfo;
             ShortcutInfo si = target.getShortcutInfo();
@@ -107,10 +109,11 @@
                 }
             }
 
-            itemInfo.container = fci.containerId;
-            fci.items.add(itemInfo);
+            itemInfo.container = mPredictorState.containerId;
+            items.add(itemInfo);
         }
 
+        FixedContainerItems fci = new FixedContainerItems(mPredictorState.containerId, items);
         dataModel.extraItems.put(fci.containerId, fci);
         bindExtraContainerItems(fci);
         usersForChangedShortcuts.forEach(
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index de0b14d..118cfc6 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -18,12 +18,12 @@
 import static android.text.format.DateUtils.DAY_IN_MILLIS;
 import static android.text.format.DateUtils.formatElapsedTime;
 
+import static com.android.launcher3.LauncherPrefs.getDevicePrefs;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_WIDGETS_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT;
-import static com.android.launcher3.Utilities.getDevicePrefs;
 import static com.android.launcher3.hybridhotseat.HotseatPredictionModel.convertDataModelToAppTargetBundle;
 import static com.android.launcher3.model.PredictionHelper.getAppTargetFromItemInfo;
 import static com.android.launcher3.model.PredictionHelper.wrapAppTargetWithItemLocation;
@@ -132,7 +132,8 @@
 
         // Widgets prediction isn't used frequently. And thus, it is not persisted on disk.
         mDataModel.extraItems.put(mWidgetsRecommendationState.containerId,
-                new FixedContainerItems(mWidgetsRecommendationState.containerId));
+                new FixedContainerItems(mWidgetsRecommendationState.containerId,
+                        new ArrayList<>()));
         mActive = true;
     }
 
diff --git a/quickstep/src/com/android/launcher3/model/WidgetsPredictionUpdateTask.java b/quickstep/src/com/android/launcher3/model/WidgetsPredictionUpdateTask.java
index 1beabf1..6160378 100644
--- a/quickstep/src/com/android/launcher3/model/WidgetsPredictionUpdateTask.java
+++ b/quickstep/src/com/android/launcher3/model/WidgetsPredictionUpdateTask.java
@@ -25,6 +25,7 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.model.BgDataModel.FixedContainerItems;
 import com.android.launcher3.model.QuickstepModelDelegate.PredictorState;
+import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.widget.PendingAddWidgetInfo;
@@ -91,10 +92,12 @@
         if (servicePredictedItems.isEmpty()) {
             servicePredictedItems.addAll(localFilteredWidgets);
         }
+
+        List<ItemInfo> items = servicePredictedItems.stream()
+                .map(it -> new PendingAddWidgetInfo(it.widgetInfo, CONTAINER_WIDGETS_PREDICTION))
+                .collect(Collectors.toList());
         FixedContainerItems fixedContainerItems =
-                new FixedContainerItems(mPredictorState.containerId);
-        servicePredictedItems.forEach(w -> fixedContainerItems.items.add(
-                new PendingAddWidgetInfo(w.widgetInfo, CONTAINER_WIDGETS_PREDICTION)));
+                new FixedContainerItems(mPredictorState.containerId, items);
 
         dataModel.extraItems.put(mPredictorState.containerId, fixedContainerItems);
         bindExtraContainerItems(fixedContainerItems);
diff --git a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
index 45d5739..af46df4 100644
--- a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
@@ -26,8 +26,8 @@
 import android.view.ViewOutlineProvider;
 
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.RevealOutlineAnimation;
 import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.util.DisplayController;
@@ -81,7 +81,7 @@
     public StashedHandleViewController(TaskbarActivityContext activity,
             StashedHandleView stashedHandleView) {
         mActivity = activity;
-        mPrefs = Utilities.getPrefs(mActivity);
+        mPrefs = LauncherPrefs.getPrefs(mActivity);
         mStashedHandleView = stashedHandleView;
         mTaskbarStashedHandleAlpha = new MultiValueAlpha(mStashedHandleView, NUM_ALPHA_CHANNELS);
         mTaskbarStashedHandleAlpha.setUpdateVisibility(true);
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 9b4015e..f51bc55 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -962,12 +962,13 @@
         }
         mControllers.taskbarStashController.addUnstashToHotseatAnimation(fullAnimation, duration);
 
-        if (!FeatureFlags.ENABLE_ALL_APPS_BUTTON_IN_HOTSEAT.get()) {
+        View allAppsButton = mControllers.taskbarViewController.getAllAppsButtonView();
+        if (allAppsButton != null && !FeatureFlags.ENABLE_ALL_APPS_BUTTON_IN_HOTSEAT.get()) {
             ValueAnimator alphaOverride = ValueAnimator.ofFloat(0, 1);
             alphaOverride.setDuration(duration);
             alphaOverride.addUpdateListener(a -> {
                 // Override the alpha updates in the icon alignment animation.
-                mControllers.taskbarViewController.getAllAppsButtonView().setAlpha(0);
+                allAppsButton.setAlpha(0);
             });
             fullAnimation.play(alphaOverride);
         }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index 06348e2..6274ec0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -42,6 +42,7 @@
 import com.android.internal.jank.InteractionJankMonitor;
 import com.android.launcher3.Alarm;
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorListeners;
@@ -187,7 +188,7 @@
 
     public TaskbarStashController(TaskbarActivityContext activity) {
         mActivity = activity;
-        mPrefs = Utilities.getPrefs(mActivity);
+        mPrefs = LauncherPrefs.getPrefs(mActivity);
         mSystemUiProxy = SystemUiProxy.INSTANCE.get(activity);
         if (isPhoneMode()) {
             // DeviceProfile's taskbar vars aren't initialized w/ the flag off
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
index fe38bb1..c4eeca7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -422,6 +422,7 @@
     /**
      * Returns the all apps button in the taskbar.
      */
+    @Nullable
     public View getAllAppsButtonView() {
         return mAllAppsButton;
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 80a31b4..9936d27 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -240,6 +240,7 @@
         return mTaskbarView.getIconViews();
     }
 
+    @Nullable
     public View getAllAppsButtonView() {
         return mTaskbarView.getAllAppsButtonView();
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/overlay/TaskbarOverlayContext.java b/quickstep/src/com/android/launcher3/taskbar/overlay/TaskbarOverlayContext.java
index 7e3163d..ebaf60a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/overlay/TaskbarOverlayContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/overlay/TaskbarOverlayContext.java
@@ -19,8 +19,8 @@
 import android.view.View;
 
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.ActivityAllAppsContainerView;
 import com.android.launcher3.allapps.search.DefaultSearchAdapterProvider;
 import com.android.launcher3.allapps.search.SearchAdapterProvider;
@@ -62,7 +62,7 @@
         mOverlayController = controllers.taskbarOverlayController;
         mDragController = new TaskbarDragController(this);
         mDragController.init(controllers);
-        mOnboardingPrefs = new OnboardingPrefs<>(this, Utilities.getPrefs(this));
+        mOnboardingPrefs = new OnboardingPrefs<>(this, LauncherPrefs.getPrefs(this));
         mDragLayer = new TaskbarOverlayDragLayer(this);
 
         TaskbarStashController taskbarStashController = controllers.taskbarStashController;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
index 5afeca7..faa900b 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
@@ -18,11 +18,11 @@
 import android.content.Context;
 import android.content.SharedPreferences;
 
-import com.android.launcher3.Utilities;
-import com.android.systemui.shared.plugins.PluginEnabler;
-
 import androidx.preference.PreferenceDataStore;
 
+import com.android.launcher3.LauncherPrefs;
+import com.android.systemui.shared.plugins.PluginEnabler;
+
 public class PluginEnablerImpl extends PreferenceDataStore implements PluginEnabler {
 
     private static final String PREFIX_PLUGIN_ENABLED = "PLUGIN_ENABLED_";
@@ -30,7 +30,7 @@
     final private SharedPreferences mSharedPrefs;
 
     public PluginEnablerImpl(Context context) {
-        mSharedPrefs = Utilities.getDevicePrefs(context);
+        mSharedPrefs = LauncherPrefs.getDevicePrefs(context);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java b/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
index 65614ba..713b016 100644
--- a/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
+++ b/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
@@ -179,9 +179,15 @@
 
     private void enableBlockingTimeout(
             TouchInteractionService.TISBinder tisBinder, boolean enable) {
-        // Allow null-pointer to catch illegal states.
-        tisBinder.getTaskbarManager().getCurrentActivityContext().enableBlockingTimeoutDuringTests(
-                enable);
+        TaskbarActivityContext context = tisBinder.getTaskbarManager().getCurrentActivityContext();
+        if (context == null) {
+            if (TestProtocol.sDebugTracing) {
+                Log.d(NPE_TRANSIENT_TASKBAR, "enableBlockingTimeout: enable=" + enable,
+                        new Exception());
+            }
+        } else {
+            context.enableBlockingTimeoutDuringTests(enable);
+        }
     }
 
     private void enableTransientTaskbar(
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 450774b..f51c9fb 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -69,6 +69,7 @@
 
 import com.android.app.viewcapture.ViewCapture;
 import com.android.launcher3.BaseDraggingActivity;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
@@ -479,7 +480,7 @@
         }
 
         // Reset home bounce seen on quick step enabled for first time
-        SharedPreferences sharedPrefs = Utilities.getPrefs(this);
+        SharedPreferences sharedPrefs = LauncherPrefs.getPrefs(this);
         if (!sharedPrefs.getBoolean(HAS_ENABLED_QUICKSTEP_ONCE, true)) {
             sharedPrefs.edit()
                     .putBoolean(HAS_ENABLED_QUICKSTEP_ONCE, true)
diff --git a/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java b/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
index 897b559..52f1867 100644
--- a/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
+++ b/quickstep/src/com/android/quickstep/interaction/AllSetActivity.java
@@ -42,6 +42,7 @@
 import android.os.Bundle;
 import android.os.VibrationEffect;
 import android.os.Vibrator;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.View;
 import android.view.View.AccessibilityDelegate;
@@ -79,6 +80,7 @@
             "#Intent;action=com.android.settings.SEARCH_RESULT_TRAMPOLINE;S.:settings:fragment_args_key=gesture_system_navigation_input_summary;S.:settings:show_fragment=com.android.settings.gestures.SystemNavigationGestureSettings;end";
     private static final String EXTRA_ACCENT_COLOR_DARK_MODE = "suwColorAccentDark";
     private static final String EXTRA_ACCENT_COLOR_LIGHT_MODE = "suwColorAccentLight";
+    private static final String EXTRA_DEVICE_NAME = "suwDeviceName";
 
     private static final float HINT_BOTTOM_FACTOR = 1 - .94f;
 
@@ -110,7 +112,8 @@
 
         int mode = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
         boolean isDarkTheme = mode == Configuration.UI_MODE_NIGHT_YES;
-        int accentColor = getIntent().getIntExtra(
+        Intent intent = getIntent();
+        int accentColor = intent.getIntExtra(
                 isDarkTheme ? EXTRA_ACCENT_COLOR_DARK_MODE : EXTRA_ACCENT_COLOR_LIGHT_MODE,
                 isDarkTheme ? Color.WHITE : Color.BLACK);
 
@@ -121,10 +124,12 @@
         mContentView = findViewById(R.id.content_view);
         mSwipeUpShift = getResources().getDimension(R.dimen.allset_swipe_up_shift);
 
-        DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
         TextView subtitle = findViewById(R.id.subtitle);
-        subtitle.setText(dp.isTablet
-                ? R.string.allset_description_tablet : R.string.allset_description);
+        String suwDeviceName = intent.getStringExtra(EXTRA_DEVICE_NAME);
+        subtitle.setText(getString(
+                R.string.allset_description_generic,
+                !TextUtils.isEmpty(suwDeviceName)
+                        ? suwDeviceName : getString(R.string.default_device_name)));
 
         TextView tv = findViewById(R.id.navigation_settings);
         tv.setTextColor(accentColor);
@@ -138,6 +143,7 @@
         });
 
         TextView hintTextView = findViewById(R.id.hint);
+        DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
         if (!dp.isGestureMode) {
             hintTextView.setText(R.string.allset_button_hint);
         }
diff --git a/quickstep/src/com/android/quickstep/interaction/GestureSandboxActivity.java b/quickstep/src/com/android/quickstep/interaction/GestureSandboxActivity.java
index bf7023c..4a70120 100644
--- a/quickstep/src/com/android/quickstep/interaction/GestureSandboxActivity.java
+++ b/quickstep/src/com/android/quickstep/interaction/GestureSandboxActivity.java
@@ -28,8 +28,8 @@
 import androidx.annotation.NonNull;
 import androidx.fragment.app.FragmentActivity;
 
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.quickstep.TouchInteractionService.TISBinder;
 import com.android.quickstep.interaction.TutorialController.TutorialType;
@@ -63,7 +63,7 @@
         requestWindowFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.gesture_tutorial_activity);
 
-        mSharedPrefs = Utilities.getPrefs(this);
+        mSharedPrefs = LauncherPrefs.getPrefs(this);
         mStatsLogManager = StatsLogManager.newInstance(getApplicationContext());
 
         Bundle args = savedInstanceState == null ? getIntent().getExtras() : savedInstanceState;
diff --git a/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java b/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java
index 2ccdfa3..5efc45e 100644
--- a/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java
+++ b/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java
@@ -16,8 +16,8 @@
 
 package com.android.quickstep.logging;
 
-import static com.android.launcher3.Utilities.getDevicePrefs;
-import static com.android.launcher3.Utilities.getPrefs;
+import static com.android.launcher3.LauncherPrefs.getDevicePrefs;
+import static com.android.launcher3.LauncherPrefs.getPrefs;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_HOME_SCREEN_SUGGESTIONS_DISABLED;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_HOME_SCREEN_SUGGESTIONS_ENABLED;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NOTIFICATION_DOT_DISABLED;
diff --git a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
index c459f30..db8c7f2 100644
--- a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
+++ b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
@@ -45,7 +45,7 @@
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.Utilities;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.DisplayController;
@@ -139,7 +139,7 @@
     public RecentsOrientedState(Context context, BaseActivityInterface sizeStrategy,
             IntConsumer rotationChangeListener) {
         mContext = context;
-        mSharedPrefs = Utilities.getPrefs(context);
+        mSharedPrefs = LauncherPrefs.getPrefs(context);
         mOrientationListener = new OrientationEventListener(context) {
             @Override
             public void onOrientationChanged(int degrees) {
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 9c5ec38..87f5210 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -200,7 +200,8 @@
         String gridName = getCurrentGridName(context);
         String newGridName = initGrid(context, gridName);
         if (!newGridName.equals(gridName)) {
-            Utilities.getPrefs(context).edit().putString(KEY_IDP_GRID_NAME, newGridName).apply();
+            LauncherPrefs.getPrefs(context).edit().putString(KEY_IDP_GRID_NAME, newGridName)
+                    .apply();
         }
         new DeviceGridState(this).writeToPrefs(context);
 
@@ -308,7 +309,7 @@
     }
 
     public static String getCurrentGridName(Context context) {
-        return Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null);
+        return LauncherPrefs.getPrefs(context).getString(KEY_IDP_GRID_NAME, null);
     }
 
     private String initGrid(Context context, String gridName) {
@@ -436,7 +437,7 @@
 
     public void setCurrentGrid(Context context, String gridName) {
         Context appContext = context.getApplicationContext();
-        Utilities.getPrefs(appContext).edit().putString(KEY_IDP_GRID_NAME, gridName).apply();
+        LauncherPrefs.getPrefs(appContext).edit().putString(KEY_IDP_GRID_NAME, gridName).apply();
         MAIN_EXECUTOR.execute(() -> onConfigChanged(appContext));
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 578efdf..5cce407 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -473,7 +473,7 @@
         InvariantDeviceProfile idp = app.getInvariantDeviceProfile();
         initDeviceProfile(idp);
         idp.addOnChangeListener(this);
-        mSharedPrefs = Utilities.getPrefs(this);
+        mSharedPrefs = LauncherPrefs.getPrefs(this);
         mIconCache = app.getIconCache();
         mAccessibilityDelegate = createAccessibilityDelegate();
 
@@ -1563,7 +1563,7 @@
 
     @Override
     public SharedPreferences getDevicePrefs() {
-        return Utilities.getDevicePrefs(this);
+        return LauncherPrefs.getDevicePrefs(this);
     }
 
     public int getOrientation() {
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index ea3f723..4965936 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -18,7 +18,7 @@
 
 import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_RESOURCE_UPDATED;
 
-import static com.android.launcher3.Utilities.getDevicePrefs;
+import static com.android.launcher3.LauncherPrefs.getDevicePrefs;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 import static com.android.launcher3.util.SettingsCache.NOTIFICATION_BADGING_URI;
 
@@ -117,7 +117,7 @@
                 observer, MODEL_EXECUTOR.getHandler());
         mOnTerminateCallback.add(iconChangeTracker::close);
         MODEL_EXECUTOR.execute(observer::verifyIconChanged);
-        SharedPreferences prefs = Utilities.getPrefs(mContext);
+        SharedPreferences prefs = LauncherPrefs.getPrefs(mContext);
         prefs.registerOnSharedPreferenceChangeListener(observer);
         mOnTerminateCallback.add(
                 () -> prefs.unregisterOnSharedPreferenceChangeListener(observer));
diff --git a/src/com/android/launcher3/LauncherPrefs.kt b/src/com/android/launcher3/LauncherPrefs.kt
new file mode 100644
index 0000000..23ff10a
--- /dev/null
+++ b/src/com/android/launcher3/LauncherPrefs.kt
@@ -0,0 +1,20 @@
+package com.android.launcher3
+
+import android.content.Context
+import android.content.SharedPreferences
+
+object LauncherPrefs {
+
+    @JvmStatic
+    fun getPrefs(context: Context): SharedPreferences {
+        // Use application context for shared preferences, so that we use a single cached instance
+        return context.applicationContext.getSharedPreferences(
+                LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE)
+    }
+
+    @JvmStatic
+    fun getDevicePrefs(context: Context): SharedPreferences {
+        // Use application context for shared preferences, so that we use a single cached instance
+        return context.applicationContext.getSharedPreferences(
+                LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE)
+    }}
\ No newline at end of file
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 457e126..d002c2b 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -374,7 +374,7 @@
             case LauncherSettings.Settings.METHOD_WAS_EMPTY_DB_CREATED : {
                 Bundle result = new Bundle();
                 result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
-                        Utilities.getPrefs(getContext()).getBoolean(
+                        LauncherPrefs.getPrefs(getContext()).getBoolean(
                                 mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false));
                 return result;
             }
@@ -520,7 +520,7 @@
     }
 
     private void clearFlagEmptyDbCreated() {
-        Utilities.getPrefs(getContext()).edit()
+        LauncherPrefs.getPrefs(getContext()).edit()
                 .remove(mOpenHelper.getKey(EMPTY_DATABASE_CREATED)).commit();
     }
 
@@ -532,7 +532,7 @@
      *   4) The default configuration for the particular device
      */
     synchronized private void loadDefaultFavoritesIfNecessary() {
-        SharedPreferences sp = Utilities.getPrefs(getContext());
+        SharedPreferences sp = LauncherPrefs.getPrefs(getContext());
 
         if (sp.getBoolean(mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false)) {
             Log.d(TAG, "loading default workspace");
@@ -738,7 +738,7 @@
          */
         protected void onEmptyDbCreated() {
             // Set the flag for empty DB
-            Utilities.getPrefs(mContext).edit().putBoolean(getKey(EMPTY_DATABASE_CREATED), true)
+            LauncherPrefs.getPrefs(mContext).edit().putBoolean(getKey(EMPTY_DATABASE_CREATED), true)
                     .commit();
         }
 
diff --git a/src/com/android/launcher3/SessionCommitReceiver.java b/src/com/android/launcher3/SessionCommitReceiver.java
index bcd4c3f..50ad2be 100644
--- a/src/com/android/launcher3/SessionCommitReceiver.java
+++ b/src/com/android/launcher3/SessionCommitReceiver.java
@@ -98,6 +98,6 @@
     }
 
     public static boolean isEnabled(Context context) {
-        return Utilities.getPrefs(context).getBoolean(ADD_ICON_PREFERENCE_KEY, true);
+        return LauncherPrefs.getPrefs(context).getBoolean(ADD_ICON_PREFERENCE_KEY, true);
     }
 }
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 743e3ae..ce009a1 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -27,7 +27,6 @@
 import android.app.Person;
 import android.app.WallpaperManager;
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.LauncherApps;
 import android.content.pm.ShortcutInfo;
@@ -509,18 +508,6 @@
         return spanned;
     }
 
-    public static SharedPreferences getPrefs(Context context) {
-        // Use application context for shared preferences, so that we use a single cached instance
-        return context.getApplicationContext().getSharedPreferences(
-                LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
-    }
-
-    public static SharedPreferences getDevicePrefs(Context context) {
-        // Use application context for shared preferences, so that we use a single cached instance
-        return context.getApplicationContext().getSharedPreferences(
-                LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE);
-    }
-
     public static boolean isWallpaperSupported(Context context) {
         return context.getSystemService(WallpaperManager.class).isWallpaperSupported();
     }
diff --git a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
index da86d98..8e519c1 100644
--- a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
@@ -54,6 +54,7 @@
 import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.Insettable;
 import com.android.launcher3.InsettableFrameLayout;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.search.SearchAdapterProvider;
@@ -148,7 +149,7 @@
 
         mWorkManager = new WorkProfileManager(
                 mActivityContext.getSystemService(UserManager.class),
-                this, Utilities.getPrefs(mActivityContext));
+                this, LauncherPrefs.getPrefs(mActivityContext));
         mAH = Arrays.asList(null, null, null);
         mAH.set(AdapterHolder.MAIN, new AdapterHolder(AdapterHolder.MAIN));
         mAH.set(AdapterHolder.WORK, new AdapterHolder(AdapterHolder.WORK));
diff --git a/src/com/android/launcher3/allapps/WorkEduCard.java b/src/com/android/launcher3/allapps/WorkEduCard.java
index 968a556..b3245ee 100644
--- a/src/com/android/launcher3/allapps/WorkEduCard.java
+++ b/src/com/android/launcher3/allapps/WorkEduCard.java
@@ -26,8 +26,8 @@
 import android.widget.FrameLayout;
 import android.widget.TextView;
 
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.model.StringCache;
 import com.android.launcher3.views.ActivityContext;
 
@@ -85,7 +85,7 @@
     @Override
     public void onClick(View view) {
         startAnimation(mDismissAnim);
-        Utilities.getPrefs(getContext()).edit().putInt(WorkProfileManager.KEY_WORK_EDU_STEP,
+        LauncherPrefs.getPrefs(getContext()).edit().putInt(WorkProfileManager.KEY_WORK_EDU_STEP,
                 1).apply();
     }
 
diff --git a/src/com/android/launcher3/graphics/GridCustomizationsProvider.java b/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
index c28bab5..feadafa 100644
--- a/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
+++ b/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
@@ -1,6 +1,6 @@
 package com.android.launcher3.graphics;
 
-import static com.android.launcher3.Utilities.getPrefs;
+import static com.android.launcher3.LauncherPrefs.getPrefs;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.Themes.KEY_THEMED_ICONS;
 import static com.android.launcher3.util.Themes.isThemedIconEnabled;
diff --git a/src/com/android/launcher3/model/BaseModelUpdateTask.java b/src/com/android/launcher3/model/BaseModelUpdateTask.java
index 5b6f9f6..74a2c5d 100644
--- a/src/com/android/launcher3/model/BaseModelUpdateTask.java
+++ b/src/com/android/launcher3/model/BaseModelUpdateTask.java
@@ -118,8 +118,7 @@
     }
 
     public void bindExtraContainerItems(@NonNull final FixedContainerItems item) {
-        FixedContainerItems copy = item.clone();
-        scheduleCallbackTask(c -> c.bindExtraContainerItems(copy));
+        scheduleCallbackTask(c -> c.bindExtraContainerItems(item));
     }
 
     public void bindDeepShortcuts(@NonNull final BgDataModel dataModel) {
diff --git a/src/com/android/launcher3/model/BgDataModel.java b/src/com/android/launcher3/model/BgDataModel.java
index de23c4b..b0f6e13 100644
--- a/src/com/android/launcher3/model/BgDataModel.java
+++ b/src/com/android/launcher3/model/BgDataModel.java
@@ -433,26 +433,9 @@
         public final int containerId;
         public final List<ItemInfo> items;
 
-        public FixedContainerItems(int containerId) {
-            this(containerId, new ArrayList<>());
-        }
-
         public FixedContainerItems(int containerId, List<ItemInfo> items) {
             this.containerId = containerId;
-            this.items = items;
-        }
-
-        @Override
-        public FixedContainerItems clone() {
-            return new FixedContainerItems(containerId, new ArrayList<>(items));
-        }
-
-        public void setItems(List<ItemInfo> newItems) {
-            items.clear();
-            newItems.forEach(item -> {
-                item.container = containerId;
-                items.add(item);
-            });
+            this.items = Collections.unmodifiableList(items);
         }
     }
 
diff --git a/src/com/android/launcher3/model/DeviceGridState.java b/src/com/android/launcher3/model/DeviceGridState.java
index 46f0b0b..85d54c0 100644
--- a/src/com/android/launcher3/model/DeviceGridState.java
+++ b/src/com/android/launcher3/model/DeviceGridState.java
@@ -29,7 +29,7 @@
 import android.text.TextUtils;
 
 import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.Utilities;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.logging.StatsLogManager.LauncherEvent;
 
 import java.util.Locale;
@@ -58,7 +58,7 @@
     }
 
     public DeviceGridState(Context context) {
-        SharedPreferences prefs = Utilities.getPrefs(context);
+        SharedPreferences prefs = LauncherPrefs.getPrefs(context);
         mGridSizeString = prefs.getString(KEY_WORKSPACE_SIZE, "");
         mNumHotseat = prefs.getInt(KEY_HOTSEAT_COUNT, -1);
         mDeviceType = prefs.getInt(KEY_DEVICE_TYPE, TYPE_PHONE);
@@ -90,7 +90,7 @@
      * Stores the device state to shared preferences
      */
     public void writeToPrefs(Context context) {
-        Utilities.getPrefs(context).edit()
+        LauncherPrefs.getPrefs(context).edit()
                 .putString(KEY_WORKSPACE_SIZE, mGridSizeString)
                 .putInt(KEY_HOTSEAT_COUNT, mNumHotseat)
                 .putInt(KEY_DEVICE_TYPE, mDeviceType)
diff --git a/src/com/android/launcher3/pm/InstallSessionHelper.java b/src/com/android/launcher3/pm/InstallSessionHelper.java
index 16bb868..150bca4 100644
--- a/src/com/android/launcher3/pm/InstallSessionHelper.java
+++ b/src/com/android/launcher3/pm/InstallSessionHelper.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3.pm;
 
-import static com.android.launcher3.Utilities.getPrefs;
+import static com.android.launcher3.LauncherPrefs.getPrefs;
 
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
diff --git a/src/com/android/launcher3/provider/RestoreDbTask.java b/src/com/android/launcher3/provider/RestoreDbTask.java
index 95ac7b0..a45e835 100644
--- a/src/com/android/launcher3/provider/RestoreDbTask.java
+++ b/src/com/android/launcher3/provider/RestoreDbTask.java
@@ -36,6 +36,7 @@
 import com.android.launcher3.AppWidgetsRestoredReceiver;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.LauncherProvider.DatabaseHelper;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.Utilities;
@@ -86,7 +87,7 @@
 
         // Set is pending to false irrespective of the result, so that it doesn't get
         // executed again.
-        Utilities.getPrefs(context).edit().remove(RESTORED_DEVICE_TYPE).commit();
+        LauncherPrefs.getPrefs(context).edit().remove(RESTORED_DEVICE_TYPE).commit();
 
         idp.reinitializeAfterRestore(context);
     }
@@ -239,7 +240,7 @@
         }
 
         // If restored from a single display backup, remove gaps between screenIds
-        if (Utilities.getPrefs(context).getInt(RESTORED_DEVICE_TYPE, TYPE_PHONE)
+        if (LauncherPrefs.getPrefs(context).getInt(RESTORED_DEVICE_TYPE, TYPE_PHONE)
                 != TYPE_MULTI_DISPLAY) {
             removeScreenIdGaps(db);
         }
@@ -338,7 +339,7 @@
     }
 
     public static boolean isPending(Context context) {
-        return Utilities.getPrefs(context).contains(RESTORED_DEVICE_TYPE);
+        return LauncherPrefs.getPrefs(context).contains(RESTORED_DEVICE_TYPE);
     }
 
     /**
@@ -346,13 +347,13 @@
      */
     public static void setPending(Context context) {
         FileLog.d(TAG, "Restore data received through full backup ");
-        Utilities.getPrefs(context).edit()
+        LauncherPrefs.getPrefs(context).edit()
                 .putInt(RESTORED_DEVICE_TYPE, new DeviceGridState(context).getDeviceType())
                 .commit();
     }
 
     private void restoreAppWidgetIdsIfExists(Context context) {
-        SharedPreferences prefs = Utilities.getPrefs(context);
+        SharedPreferences prefs = LauncherPrefs.getPrefs(context);
         if (prefs.contains(APPWIDGET_OLD_IDS) && prefs.contains(APPWIDGET_IDS)) {
             LauncherWidgetHolder holder = new LauncherWidgetHolder(context);
             AppWidgetsRestoredReceiver.restoreAppWidgetIds(context,
@@ -370,7 +371,7 @@
 
     public static void setRestoredAppWidgetIds(Context context, @NonNull int[] oldIds,
             @NonNull int[] newIds) {
-        Utilities.getPrefs(context).edit()
+        LauncherPrefs.getPrefs(context).edit()
                 .putString(APPWIDGET_OLD_IDS, IntArray.wrap(oldIds).toConcatString())
                 .putString(APPWIDGET_IDS, IntArray.wrap(newIds).toConcatString())
                 .commit();
diff --git a/src/com/android/launcher3/qsb/QsbContainerView.java b/src/com/android/launcher3/qsb/QsbContainerView.java
index 23ee251..f295204 100644
--- a/src/com/android/launcher3/qsb/QsbContainerView.java
+++ b/src/com/android/launcher3/qsb/QsbContainerView.java
@@ -43,8 +43,8 @@
 
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.FragmentWithPreview;
 import com.android.launcher3.widget.util.WidgetSizes;
@@ -200,7 +200,7 @@
             Context context = getContext();
             AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
 
-            int widgetId = Utilities.getPrefs(context).getInt(mKeyWidgetId, -1);
+            int widgetId = LauncherPrefs.getPrefs(context).getInt(mKeyWidgetId, -1);
             AppWidgetProviderInfo widgetInfo = widgetManager.getAppWidgetInfo(widgetId);
             boolean isWidgetBound = (widgetInfo != null) &&
                     widgetInfo.provider.equals(mWidgetInfo.provider);
@@ -244,7 +244,7 @@
         }
 
         private void saveWidgetId(int widgetId) {
-            Utilities.getPrefs(getContext()).edit().putInt(mKeyWidgetId, widgetId).apply();
+            LauncherPrefs.getPrefs(getContext()).edit().putInt(mKeyWidgetId, widgetId).apply();
         }
 
         @Override
diff --git a/src/com/android/launcher3/search/StringMatcherUtility.java b/src/com/android/launcher3/search/StringMatcherUtility.java
index acab52b..c66f3a1 100644
--- a/src/com/android/launcher3/search/StringMatcherUtility.java
+++ b/src/com/android/launcher3/search/StringMatcherUtility.java
@@ -24,8 +24,8 @@
 public class StringMatcherUtility {
 
     /**
-     * Returns {@code true} is {@code query} is a prefix substring of a complete word/phrase in
-     * {@code target}.
+     * Returns {@code true} if {@code query} is a prefix of a substring in {@code target}. How to
+     * break target to valid substring is defined in the given {@code matcher}.
      */
     public static boolean matches(String query, String target, StringMatcher matcher) {
         int queryLength = query.length();
@@ -50,7 +50,7 @@
             thisType = nextType;
             nextType = i < (targetLength - 1)
                     ? Character.getType(target.codePointAt(i + 1)) : Character.UNASSIGNED;
-            if (isBreak(thisType, lastType, nextType)
+            if (matcher.isBreak(thisType, lastType, nextType)
                     && matcher.matches(query, target.substring(i, i + queryLength))) {
                 return true;
             }
@@ -59,52 +59,6 @@
     }
 
     /**
-     * Returns true if the current point should be a break point. Following cases
-     * are considered as break points:
-     *      1) Any non space character after a space character
-     *      2) Any digit after a non-digit character
-     *      3) Any capital character after a digit or small character
-     *      4) Any capital character before a small character
-     */
-    private static boolean isBreak(int thisType, int prevType, int nextType) {
-        switch (prevType) {
-            case Character.UNASSIGNED:
-            case Character.SPACE_SEPARATOR:
-            case Character.LINE_SEPARATOR:
-            case Character.PARAGRAPH_SEPARATOR:
-                return true;
-        }
-        switch (thisType) {
-            case Character.UPPERCASE_LETTER:
-                if (nextType == Character.UPPERCASE_LETTER) {
-                    return true;
-                }
-                // Follow through
-            case Character.TITLECASE_LETTER:
-                // Break point if previous was not a upper case
-                return prevType != Character.UPPERCASE_LETTER;
-            case Character.LOWERCASE_LETTER:
-                // Break point if previous was not a letter.
-                return prevType > Character.OTHER_LETTER || prevType <= Character.UNASSIGNED;
-            case Character.DECIMAL_DIGIT_NUMBER:
-            case Character.LETTER_NUMBER:
-            case Character.OTHER_NUMBER:
-                // Break point if previous was not a number
-                return !(prevType == Character.DECIMAL_DIGIT_NUMBER
-                        || prevType == Character.LETTER_NUMBER
-                        || prevType == Character.OTHER_NUMBER);
-            case Character.MATH_SYMBOL:
-            case Character.CURRENCY_SYMBOL:
-            case Character.OTHER_PUNCTUATION:
-            case Character.DASH_PUNCTUATION:
-                // Always a break point for a symbol
-                return true;
-            default:
-                return  false;
-        }
-    }
-
-    /**
      * Performs locale sensitive string comparison using {@link Collator}.
      */
     public static class StringMatcher {
@@ -142,6 +96,75 @@
         public static StringMatcher getInstance() {
             return new StringMatcher();
         }
+
+        /**
+         * Returns true if the current point should be a break point.
+         *
+         * Following cases are considered as break points:
+         *     1) Any non space character after a space character
+         *     2) Any digit after a non-digit character
+         *     3) Any capital character after a digit or small character
+         *     4) Any capital character before a small character
+         *
+         * E.g., "YouTube" matches the input "you" and "tube", but not "out".
+         */
+        protected boolean isBreak(int thisType, int prevType, int nextType) {
+            switch (prevType) {
+                case Character.UNASSIGNED:
+                case Character.SPACE_SEPARATOR:
+                case Character.LINE_SEPARATOR:
+                case Character.PARAGRAPH_SEPARATOR:
+                    return true;
+            }
+            switch (thisType) {
+                case Character.UPPERCASE_LETTER:
+                    if (nextType == Character.UPPERCASE_LETTER) {
+                        return true;
+                    }
+                    // Follow through
+                case Character.TITLECASE_LETTER:
+                    // Break point if previous was not a upper case
+                    return prevType != Character.UPPERCASE_LETTER;
+                case Character.LOWERCASE_LETTER:
+                    // Break point if previous was not a letter.
+                    return prevType > Character.OTHER_LETTER || prevType <= Character.UNASSIGNED;
+                case Character.DECIMAL_DIGIT_NUMBER:
+                case Character.LETTER_NUMBER:
+                case Character.OTHER_NUMBER:
+                    // Break point if previous was not a number
+                    return !(prevType == Character.DECIMAL_DIGIT_NUMBER
+                            || prevType == Character.LETTER_NUMBER
+                            || prevType == Character.OTHER_NUMBER);
+                case Character.MATH_SYMBOL:
+                case Character.CURRENCY_SYMBOL:
+                case Character.OTHER_PUNCTUATION:
+                case Character.DASH_PUNCTUATION:
+                    // Always a break point for a symbol
+                    return true;
+                default:
+                    return  false;
+            }
+        }
+    }
+
+    /**
+     * Subclass of {@code StringMatcher} using simple space break for prefix matching.
+     * E.g., "YouTube" matches the input "you". "Play Store" matches the input "play".
+     */
+    public static class StringMatcherSpace extends StringMatcher {
+
+        public static StringMatcherSpace getInstance() {
+            return new StringMatcherSpace();
+        }
+
+        /**
+         * The first character or any character after a space is considered as a break point.
+         * Returns true if the current point should be a break point.
+         */
+        @Override
+        protected boolean isBreak(int thisType, int prevType, int nextType) {
+            return prevType == Character.UNASSIGNED || prevType == Character.SPACE_SEPARATOR;
+        }
     }
 
     /**
diff --git a/src/com/android/launcher3/secondarydisplay/SecondaryDisplayLauncher.java b/src/com/android/launcher3/secondarydisplay/SecondaryDisplayLauncher.java
index 7b32d8b..dbab700 100644
--- a/src/com/android/launcher3/secondarydisplay/SecondaryDisplayLauncher.java
+++ b/src/com/android/launcher3/secondarydisplay/SecondaryDisplayLauncher.java
@@ -35,9 +35,9 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.ActivityAllAppsContainerView;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragOptions;
@@ -87,7 +87,7 @@
         super.onCreate(savedInstanceState);
         mModel = LauncherAppState.getInstance(this).getModel();
         mDragController = new SecondaryDragController(this);
-        mOnboardingPrefs = new OnboardingPrefs<>(this, Utilities.getPrefs(this));
+        mOnboardingPrefs = new OnboardingPrefs<>(this, LauncherPrefs.getPrefs(this));
         mSecondaryDisplayPredictions = SecondaryDisplayPredictions.newInstance(this);
         if (getWindow().getDecorView().isAttachedToWindow()) {
             initUi();
diff --git a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
index 6057586..c81214e 100644
--- a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
+++ b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
@@ -59,8 +59,8 @@
 import androidx.preference.PreferenceViewHolder;
 import androidx.preference.SwitchPreference;
 
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.config.FlagTogglerPrefUi;
 import com.android.launcher3.secondarydisplay.SecondaryDisplayLauncher;
@@ -392,7 +392,8 @@
             onboardingPref.setTitle(title);
             onboardingPref.setSummary("Tap to reset");
             onboardingPref.setOnPreferenceClickListener(preference -> {
-                SharedPreferences.Editor sharedPrefsEdit = Utilities.getPrefs(getContext()).edit();
+                SharedPreferences.Editor sharedPrefsEdit = LauncherPrefs.getPrefs(getContext())
+                        .edit();
                 for (String key : keys) {
                     sharedPrefsEdit.remove(key);
                 }
diff --git a/src/com/android/launcher3/settings/SettingsActivity.java b/src/com/android/launcher3/settings/SettingsActivity.java
index 70956a3..4cb4348 100644
--- a/src/com/android/launcher3/settings/SettingsActivity.java
+++ b/src/com/android/launcher3/settings/SettingsActivity.java
@@ -46,6 +46,7 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.LauncherFiles;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
@@ -113,7 +114,8 @@
             // Display the fragment as the main content.
             fm.beginTransaction().replace(R.id.content_frame, f).commit();
         }
-        Utilities.getPrefs(getApplicationContext()).registerOnSharedPreferenceChangeListener(this);
+        LauncherPrefs.getPrefs(getApplicationContext())
+                .registerOnSharedPreferenceChangeListener(this);
     }
 
     /**
diff --git a/src/com/android/launcher3/states/RotationHelper.java b/src/com/android/launcher3/states/RotationHelper.java
index b94ea07..642bdcd 100644
--- a/src/com/android/launcher3/states/RotationHelper.java
+++ b/src/com/android/launcher3/states/RotationHelper.java
@@ -36,7 +36,7 @@
 
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.Utilities;
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.util.DisplayController;
 
 /**
@@ -104,7 +104,7 @@
         mIgnoreAutoRotateSettings = ignoreAutoRotateSettings;
         if (!mIgnoreAutoRotateSettings) {
             if (mSharedPrefs == null) {
-                mSharedPrefs = Utilities.getPrefs(mActivity);
+                mSharedPrefs = LauncherPrefs.getPrefs(mActivity);
                 mSharedPrefs.registerOnSharedPreferenceChangeListener(this);
             }
             mHomeRotationEnabled = mSharedPrefs.getBoolean(ALLOW_ROTATION_PREFERENCE_KEY,
diff --git a/src/com/android/launcher3/util/Themes.java b/src/com/android/launcher3/util/Themes.java
index 1728f4d..585bea9 100644
--- a/src/com/android/launcher3/util/Themes.java
+++ b/src/com/android/launcher3/util/Themes.java
@@ -30,6 +30,7 @@
 import android.util.SparseArray;
 import android.util.TypedValue;
 
+import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.icons.GraphicsUtils;
@@ -73,7 +74,7 @@
      * Returns true if workspace icon theming is enabled
      */
     public static boolean isThemedIconEnabled(Context context) {
-        return Utilities.getPrefs(context).getBoolean(KEY_THEMED_ICONS, false);
+        return LauncherPrefs.getPrefs(context).getBoolean(KEY_THEMED_ICONS, false);
     }
 
     public static String getDefaultBodyFont(Context context) {
diff --git a/tests/src/com/android/launcher3/search/StringMatcherUtilityTest.java b/tests/src/com/android/launcher3/search/StringMatcherUtilityTest.java
index 413f404..3b53255 100644
--- a/tests/src/com/android/launcher3/search/StringMatcherUtilityTest.java
+++ b/tests/src/com/android/launcher3/search/StringMatcherUtilityTest.java
@@ -24,6 +24,7 @@
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.search.StringMatcherUtility.StringMatcher;
+import com.android.launcher3.search.StringMatcherUtility.StringMatcherSpace;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -34,11 +35,12 @@
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class StringMatcherUtilityTest {
-    private static final StringMatcher MATCHER =
-            StringMatcher.getInstance();
+    private static final StringMatcher MATCHER = StringMatcher.getInstance();
+    private static final StringMatcherSpace MATCHER_SPACE = StringMatcherSpace.getInstance();
 
     @Test
     public void testMatches() {
+        assertTrue(matches("white", "white cow", MATCHER));
         assertTrue(matches("white ", "white cow", MATCHER));
         assertTrue(matches("white c", "white cow", MATCHER));
         assertTrue(matches("cow", "white cow", MATCHER));
@@ -93,4 +95,47 @@
         assertFalse(matches("ㄷ", "로드라이브", MATCHER));
         assertFalse(matches("åç", "abc", MATCHER));
     }
+
+    @Test
+    public void testMatchesWithSpaceBreakOnly() {
+        assertTrue(matches("white", "white cow", MATCHER_SPACE));
+        assertTrue(matches("white ", "white cow", MATCHER_SPACE));
+        assertTrue(matches("white c", "white cow", MATCHER_SPACE));
+        assertTrue(matches("cow", "white cow", MATCHER_SPACE));
+        assertTrue(matches("cow", "whitecow cow", MATCHER_SPACE));
+
+        assertFalse(matches("cow", "whiteCow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whiteCOW", MATCHER_SPACE));
+        assertFalse(matches("cow", "whitecowCOW", MATCHER_SPACE));
+        assertFalse(matches("cow", "white2cow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whitecow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whitEcow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whitecowCow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whitecowcow", MATCHER_SPACE));
+        assertFalse(matches("cow", "whit ecowcow", MATCHER_SPACE));
+
+        assertFalse(matches("dog", "cats&dogs", MATCHER_SPACE));
+        assertFalse(matches("dog", "cats&Dogs", MATCHER_SPACE));
+        assertFalse(matches("&", "cats&Dogs", MATCHER_SPACE));
+
+        assertFalse(matches("43", "2+43", MATCHER_SPACE));
+        assertFalse(matches("3", "2+43", MATCHER_SPACE));
+
+        assertTrue(matches("q", "Q", MATCHER_SPACE));
+        assertTrue(matches("q", "  Q", MATCHER_SPACE));
+
+        // match lower case words
+        assertTrue(matches("e", "elephant", MATCHER_SPACE));
+        assertTrue(matches("eL", "Elephant", MATCHER_SPACE));
+
+        assertTrue(matches("电", "电子邮件", MATCHER_SPACE));
+        assertTrue(matches("电子", "电子邮件", MATCHER_SPACE));
+        assertTrue(matches("子", "电子邮件", MATCHER_SPACE));
+        assertTrue(matches("邮件", "电子邮件", MATCHER_SPACE));
+
+        assertFalse(matches("ba", "Bot", MATCHER_SPACE));
+        assertFalse(matches("ba", "bot", MATCHER_SPACE));
+        assertFalse(matches("phant", "elephant", MATCHER_SPACE));
+        assertFalse(matches("elephants", "elephant", MATCHER_SPACE));
+    }
 }