diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index b172095..764b0d3 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -33,6 +33,7 @@
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.QuickstepTransitionManager;
 import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorListeners;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
@@ -285,6 +286,7 @@
      */
     public void showEdu() {
         if (!FeatureFlags.ENABLE_TASKBAR_EDU.get()
+                || Utilities.IS_RUNNING_IN_TEST_HARNESS
                 || mLauncher.getOnboardingPrefs().getBoolean(OnboardingPrefs.TASKBAR_EDU_SEEN)) {
             return;
         }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index ec98bbf..453bf1c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -22,7 +22,10 @@
 import static com.android.launcher3.util.DisplayController.CHANGE_DENSITY;
 import static com.android.launcher3.util.DisplayController.CHANGE_SUPPORTED_BOUNDS;
 
+import android.content.ComponentCallbacks;
 import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.content.res.Configuration;
 import android.hardware.display.DisplayManager;
 import android.net.Uri;
 import android.provider.Settings;
@@ -58,6 +61,7 @@
     private final SysUINavigationMode mSysUINavigationMode;
     private final TaskbarNavButtonController mNavButtonController;
     private final SettingsCache.OnChangeListener mUserSetupCompleteListener;
+    private final ComponentCallbacks mComponentCallbacks;
 
     // The source for this provider is set when Launcher is available
     private final ScopedUnfoldTransitionProgressProvider mUnfoldProgressProvider =
@@ -84,11 +88,27 @@
         mContext = service.createWindowContext(display, TYPE_APPLICATION_OVERLAY, null);
         mNavButtonController = new TaskbarNavButtonController(service);
         mUserSetupCompleteListener = isUserSetupComplete -> recreateTaskbar();
+        mComponentCallbacks = new ComponentCallbacks() {
+            private Configuration mOldConfig = mContext.getResources().getConfiguration();
+
+            @Override
+            public void onConfigurationChanged(Configuration newConfig) {
+                if ((mOldConfig.diff(newConfig) & ActivityInfo.CONFIG_ASSETS_PATHS) != 0) {
+                    // Color has changed, recreate taskbar to reload background color & icons.
+                    recreateTaskbar();
+                }
+                mOldConfig = newConfig;
+            }
+
+            @Override
+            public void onLowMemory() { }
+        };
 
         mDisplayController.addChangeListener(this);
         mSysUINavigationMode.addModeChangeListener(this);
         SettingsCache.INSTANCE.get(mContext).register(USER_SETUP_COMPLETE_URI,
                 mUserSetupCompleteListener);
+        mContext.registerComponentCallbacks(mComponentCallbacks);
 
         recreateTaskbar();
     }
@@ -210,6 +230,7 @@
         mSysUINavigationMode.removeModeChangeListener(this);
         SettingsCache.INSTANCE.get(mContext).unregister(USER_SETUP_COMPLETE_URI,
                 mUserSetupCompleteListener);
+        mContext.unregisterComponentCallbacks(mComponentCallbacks);
     }
 
     public @Nullable TaskbarActivityContext getCurrentActivityContext() {
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 3b962d8..b690982 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1866,7 +1866,7 @@
         setCurrentTask(-1);
         mIgnoreResetTaskId = -1;
         mTaskListChangeId = -1;
-        mFocusedTaskViewId = getTaskViewCount() > 0 ? getTaskViewAt(0).getTaskViewId() : -1;
+        mFocusedTaskViewId = -1;
 
         if (mRecentsAnimationController != null) {
             if (ENABLE_QUICKSTEP_LIVE_TILE.get() && mEnableDrawingLiveTile) {
diff --git a/res/layout/qsb_preview.xml b/res/layout/qsb_preview.xml
new file mode 100644
index 0000000..801fb04
--- /dev/null
+++ b/res/layout/qsb_preview.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<com.android.launcher3.qsb.QsbContainerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="0dp"
+    android:id="@id/search_container_workspace"
+    android:padding="0dp" >
+
+    <fragment
+        android:name="com.android.launcher3.qsb.QsbContainerView$QsbFragment"
+        android:layout_width="match_parent"
+        android:tag="qsb_view"
+        android:layout_height="match_parent"/>
+</com.android.launcher3.qsb.QsbContainerView>
\ No newline at end of file
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 1354a7a..8e1a09c 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -600,9 +600,11 @@
 
     private void initDeviceProfile(InvariantDeviceProfile idp) {
         // Load configuration-specific DeviceProfile
-        mDeviceProfile = isInMultiWindowMode()
-                ? mDeviceProfile.getMultiWindowProfile(this, getMultiWindowDisplaySize())
-                : idp.getDeviceProfile(this);
+        mDeviceProfile = idp.getDeviceProfile(this);
+        if (isInMultiWindowMode()) {
+            mDeviceProfile = mDeviceProfile.getMultiWindowProfile(
+                    this, getMultiWindowDisplaySize());
+        }
 
         onDeviceProfileInitiated();
         mModelWriter = mModel.getWriter(getDeviceProfile().isVerticalBarLayout(), true, this);
diff --git a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
index 43ac8f9..94fc708 100644
--- a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
+++ b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
@@ -324,7 +324,9 @@
     }
 
     private void inflateAndAddFolder(FolderInfo info) {
-        CellLayout screen = mWorkspaceScreens.get(info.screenId);
+        CellLayout screen = info.container == Favorites.CONTAINER_DESKTOP
+                ? mWorkspaceScreens.get(info.screenId)
+                : mHotseat;
         FolderIcon folderIcon = FolderIcon.inflateIcon(R.layout.folder_icon, this, screen,
                 info);
         addInScreenFromBind(folderIcon, info);
@@ -471,8 +473,8 @@
         // Add first page QSB
         if (FeatureFlags.QSB_ON_FIRST_SCREEN) {
             CellLayout firstScreen = mWorkspaceScreens.get(FIRST_SCREEN_ID);
-            View qsb = mHomeElementInflater.inflate(
-                    R.layout.search_container_workspace, firstScreen, false);
+            View qsb = mHomeElementInflater.inflate(R.layout.qsb_preview, firstScreen,
+                    false);
             CellLayout.LayoutParams lp =
                     new CellLayout.LayoutParams(0, 0, firstScreen.getCountX(), 1);
             lp.canReorder = false;
diff --git a/src/com/android/launcher3/pm/InstallSessionHelper.java b/src/com/android/launcher3/pm/InstallSessionHelper.java
index ab35bd6..4b86f65 100644
--- a/src/com/android/launcher3/pm/InstallSessionHelper.java
+++ b/src/com/android/launcher3/pm/InstallSessionHelper.java
@@ -17,7 +17,6 @@
 package com.android.launcher3.pm;
 
 import static com.android.launcher3.Utilities.getPrefs;
-import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
@@ -25,7 +24,6 @@
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionInfo;
 import android.content.pm.PackageManager;
-import android.os.Build;
 import android.os.Process;
 import android.os.UserHandle;
 import android.text.TextUtils;
@@ -238,24 +236,12 @@
     }
 
     public InstallSessionTracker registerInstallTracker(InstallSessionTracker.Callback callback) {
-        InstallSessionTracker tracker = new InstallSessionTracker(this, callback);
-
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
-            mInstaller.registerSessionCallback(tracker, MODEL_EXECUTOR.getHandler());
-        } else {
-            mLauncherApps.registerPackageInstallerSessionCallback(MODEL_EXECUTOR, tracker);
-        }
+        InstallSessionTracker tracker = new InstallSessionTracker(
+                this, callback, mInstaller, mLauncherApps);
+        tracker.register();
         return tracker;
     }
 
-    void unregister(InstallSessionTracker tracker) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
-            mInstaller.unregisterSessionCallback(tracker);
-        } else {
-            mLauncherApps.unregisterPackageInstallerSessionCallback(tracker);
-        }
-    }
-
     public static UserHandle getUserHandle(SessionInfo info) {
         return Utilities.ATLEAST_Q ? info.getUser() : Process.myUserHandle();
     }
diff --git a/src/com/android/launcher3/pm/InstallSessionTracker.java b/src/com/android/launcher3/pm/InstallSessionTracker.java
index b0b907a..e1b3c1a 100644
--- a/src/com/android/launcher3/pm/InstallSessionTracker.java
+++ b/src/com/android/launcher3/pm/InstallSessionTracker.java
@@ -18,9 +18,12 @@
 import static com.android.launcher3.pm.InstallSessionHelper.getUserHandle;
 import static com.android.launcher3.pm.PackageInstallInfo.STATUS_FAILED;
 import static com.android.launcher3.pm.PackageInstallInfo.STATUS_INSTALLED;
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
+import android.content.pm.LauncherApps;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageInstaller.SessionInfo;
+import android.os.Build;
 import android.os.UserHandle;
 import android.util.SparseArray;
 
@@ -28,35 +31,53 @@
 
 import com.android.launcher3.util.PackageUserKey;
 
+import java.lang.ref.WeakReference;
+
 @WorkerThread
 public class InstallSessionTracker extends PackageInstaller.SessionCallback {
 
     // Lazily initialized
     private SparseArray<PackageUserKey> mActiveSessions = null;
 
-    private final InstallSessionHelper mInstallerCompat;
-    private final Callback mCallback;
+    private final WeakReference<InstallSessionHelper> mWeakHelper;
+    private final WeakReference<Callback> mWeakCallback;
+    private final PackageInstaller mInstaller;
+    private final LauncherApps mLauncherApps;
 
-    InstallSessionTracker(InstallSessionHelper installerCompat, Callback callback) {
-        mInstallerCompat = installerCompat;
-        mCallback = callback;
+
+    InstallSessionTracker(InstallSessionHelper installerCompat, Callback callback,
+            PackageInstaller installer, LauncherApps launcherApps) {
+        mWeakHelper = new WeakReference<>(installerCompat);
+        mWeakCallback = new WeakReference<>(callback);
+        mInstaller = installer;
+        mLauncherApps = launcherApps;
     }
 
     @Override
     public void onCreated(int sessionId) {
-        SessionInfo sessionInfo = pushSessionDisplayToLauncher(sessionId);
+        InstallSessionHelper helper = mWeakHelper.get();
+        Callback callback = mWeakCallback.get();
+        if (callback == null || helper == null) {
+            return;
+        }
+        SessionInfo sessionInfo = pushSessionDisplayToLauncher(sessionId, helper, callback);
         if (sessionInfo != null) {
-            mCallback.onInstallSessionCreated(PackageInstallInfo.fromInstallingState(sessionInfo));
+            callback.onInstallSessionCreated(PackageInstallInfo.fromInstallingState(sessionInfo));
         }
 
-        mInstallerCompat.tryQueuePromiseAppIcon(sessionInfo);
+        helper.tryQueuePromiseAppIcon(sessionInfo);
     }
 
     @Override
     public void onFinished(int sessionId, boolean success) {
+        InstallSessionHelper helper = mWeakHelper.get();
+        Callback callback = mWeakCallback.get();
+        if (callback == null || helper == null) {
+            return;
+        }
         // For a finished session, we can't get the session info. So use the
         // packageName from our local cache.
-        SparseArray<PackageUserKey> activeSessions = getActiveSessionMap();
+        SparseArray<PackageUserKey> activeSessions = getActiveSessionMap(helper);
         PackageUserKey key = activeSessions.get(sessionId);
         activeSessions.remove(sessionId);
 
@@ -65,21 +86,26 @@
             PackageInstallInfo info = PackageInstallInfo.fromState(
                     success ? STATUS_INSTALLED : STATUS_FAILED,
                     packageName, key.mUser);
-            mCallback.onPackageStateChanged(info);
+            callback.onPackageStateChanged(info);
 
-            if (!success && mInstallerCompat.promiseIconAddedForId(sessionId)) {
-                mCallback.onSessionFailure(packageName, key.mUser);
+            if (!success && helper.promiseIconAddedForId(sessionId)) {
+                callback.onSessionFailure(packageName, key.mUser);
                 // If it is successful, the id is removed in the the package added flow.
-                mInstallerCompat.removePromiseIconId(sessionId);
+                helper.removePromiseIconId(sessionId);
             }
         }
     }
 
     @Override
     public void onProgressChanged(int sessionId, float progress) {
-        SessionInfo session = mInstallerCompat.getVerifiedSessionInfo(sessionId);
+        InstallSessionHelper helper = mWeakHelper.get();
+        Callback callback = mWeakCallback.get();
+        if (callback == null || helper == null) {
+            return;
+        }
+        SessionInfo session = helper.getVerifiedSessionInfo(sessionId);
         if (session != null && session.getAppPackageName() != null) {
-            mCallback.onPackageStateChanged(PackageInstallInfo.fromInstallingState(session));
+            callback.onPackageStateChanged(PackageInstallInfo.fromInstallingState(session));
         }
     }
 
@@ -88,35 +114,53 @@
 
     @Override
     public void onBadgingChanged(int sessionId) {
-        SessionInfo sessionInfo = pushSessionDisplayToLauncher(sessionId);
+        InstallSessionHelper helper = mWeakHelper.get();
+        Callback callback = mWeakCallback.get();
+        if (callback == null || helper == null) {
+            return;
+        }
+        SessionInfo sessionInfo = pushSessionDisplayToLauncher(sessionId, helper, callback);
         if (sessionInfo != null) {
-            mInstallerCompat.tryQueuePromiseAppIcon(sessionInfo);
+            helper.tryQueuePromiseAppIcon(sessionInfo);
         }
     }
 
-    private SessionInfo pushSessionDisplayToLauncher(int sessionId) {
-        SessionInfo session = mInstallerCompat.getVerifiedSessionInfo(sessionId);
+    private SessionInfo pushSessionDisplayToLauncher(
+            int sessionId, InstallSessionHelper helper, Callback callback) {
+        SessionInfo session = helper.getVerifiedSessionInfo(sessionId);
         if (session != null && session.getAppPackageName() != null) {
             PackageUserKey key =
                     new PackageUserKey(session.getAppPackageName(), getUserHandle(session));
-            getActiveSessionMap().put(session.getSessionId(), key);
-            mCallback.onUpdateSessionDisplay(key, session);
+            getActiveSessionMap(helper).put(session.getSessionId(), key);
+            callback.onUpdateSessionDisplay(key, session);
             return session;
         }
         return null;
     }
 
-    private SparseArray<PackageUserKey> getActiveSessionMap() {
+    private SparseArray<PackageUserKey> getActiveSessionMap(InstallSessionHelper helper) {
         if (mActiveSessions == null) {
             mActiveSessions = new SparseArray<>();
-            mInstallerCompat.getActiveSessions().forEach(
+            helper.getActiveSessions().forEach(
                     (key, si) -> mActiveSessions.put(si.getSessionId(), key));
         }
         return mActiveSessions;
     }
 
+    void register() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            mInstaller.registerSessionCallback(this, MODEL_EXECUTOR.getHandler());
+        } else {
+            mLauncherApps.registerPackageInstallerSessionCallback(MODEL_EXECUTOR, this);
+        }
+    }
+
     public void unregister() {
-        mInstallerCompat.unregister(this);
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            mInstaller.unregisterSessionCallback(this);
+        } else {
+            mLauncherApps.unregisterPackageInstallerSessionCallback(this);
+        }
     }
 
     public interface Callback {
diff --git a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
index a5694fc..ccbb662 100644
--- a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
@@ -42,7 +42,6 @@
 import com.android.launcher3.util.LauncherBindableItemsContainer.ItemOperator;
 import com.android.launcher3.util.Wait;
 import com.android.launcher3.util.Wait.Condition;
-import com.android.launcher3.util.rule.ScreenRecordRule.ScreenRecord;
 import com.android.launcher3.util.rule.ShellCommandRule;
 
 import org.junit.Before;
@@ -78,7 +77,6 @@
     public void testEmpty() throws Throwable { /* needed while the broken tests are being fixed */ }
 
     @Test
-    @ScreenRecord  //b/192010616
     public void testPinWidgetNoConfig() throws Throwable {
         runTest("pinWidgetNoConfig", true, (info, view) -> info instanceof LauncherAppWidgetInfo &&
                 ((LauncherAppWidgetInfo) info).appWidgetId == mAppWidgetId &&
diff --git a/tests/src/com/android/launcher3/util/LauncherModelHelper.java b/tests/src/com/android/launcher3/util/LauncherModelHelper.java
index c9b63ae..59966ee 100644
--- a/tests/src/com/android/launcher3/util/LauncherModelHelper.java
+++ b/tests/src/com/android/launcher3/util/LauncherModelHelper.java
@@ -66,7 +66,6 @@
 import com.android.launcher3.pm.UserCache;
 import com.android.launcher3.testing.TestInformationProvider;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
-import com.android.launcher3.util.MainThreadInitializedObject.ObjectProvider;
 import com.android.launcher3.util.MainThreadInitializedObject.SandboxContext;
 import com.android.launcher3.widget.custom.CustomWidgetManager;
 
@@ -533,12 +532,6 @@
             super.onDestroy();
         }
 
-
-        @Override
-        protected <T> T createObject(ObjectProvider<T> provider) {
-            return spy(provider.get(this));
-        }
-
         @Override
         public PackageManager getPackageManager() {
             return mPm;