diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
index b8e9137..ff73679 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsUiFactory.java
@@ -63,8 +63,8 @@
     /**
      * Reusable command for applying the shelf height on the background thread.
      */
-    public static final AsyncCommand SET_SHELF_HEIGHT = (context, visible, height) -> {
-        SystemUiProxy.INSTANCE.get(context).setShelfHeight(visible, (int) height);
+    public static final AsyncCommand SET_SHELF_HEIGHT = (context, arg1, arg2) -> {
+        SystemUiProxy.INSTANCE.get(context).setShelfHeight(arg1 != 0, arg2);
     };
 
     public static RotationMode ROTATION_LANDSCAPE = new RotationMode(-90) {
@@ -209,7 +209,7 @@
         DeviceProfile profile = launcher.getDeviceProfile();
         boolean visible = (state == NORMAL || state == OVERVIEW) && launcher.isUserActive()
                 && !profile.isVerticalBarLayout();
-        UiThreadHelper.runAsyncCommand(launcher, SET_SHELF_HEIGHT, visible,
+        UiThreadHelper.runAsyncCommand(launcher, SET_SHELF_HEIGHT, visible ? 1 : 0,
                 profile.hotseatBarSizePx);
         if (state == NORMAL) {
             launcher.<RecentsView>getOverviewPanel().setSwipeDownShouldLaunchApp(false);
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
index e215cfe..ee2e951 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/FlingAndHoldTouchController.java
@@ -50,7 +50,7 @@
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
-import com.android.quickstep.OverviewInteractionState;
+import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.MotionPauseDetector;
 import com.android.quickstep.views.RecentsView;
 
@@ -120,7 +120,7 @@
      * having it as part of the existing animation to the target state.
      */
     private boolean handlingOverviewAnim() {
-        int stateFlags = OverviewInteractionState.INSTANCE.get(mLauncher).getSystemUiStateFlags();
+        int stateFlags = SystemUiProxy.INSTANCE.get(mLauncher).getLastSystemUiStateFlags();
         return mStartState == NORMAL && (stateFlags & SYSUI_STATE_OVERVIEW_DISABLED) == 0;
     }
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
index 6576ec5..5c3b55d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
@@ -45,9 +45,9 @@
 import com.android.launcher3.touch.SwipeDetector;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
-import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.SysUINavigationMode.Mode;
+import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 
@@ -82,7 +82,7 @@
 
     @Override
     protected LauncherState getTargetState(LauncherState fromState, boolean isDragTowardPositive) {
-        int stateFlags = OverviewInteractionState.INSTANCE.get(mLauncher).getSystemUiStateFlags();
+        int stateFlags = SystemUiProxy.INSTANCE.get(mLauncher).getLastSystemUiStateFlags();
         if ((stateFlags & SYSUI_STATE_OVERVIEW_DISABLED) != 0) {
             return NORMAL;
         }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
index d1c6381..0700f7b 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java
@@ -36,6 +36,7 @@
 import android.app.TaskInfo;
 import android.content.ComponentName;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.graphics.Region;
 import android.os.Build;
@@ -52,6 +53,7 @@
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.model.AppLaunchTracker;
@@ -68,7 +70,7 @@
 import com.android.quickstep.inputconsumers.OtherActivityInputConsumer;
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.inputconsumers.OverviewWithoutFocusInputConsumer;
-import com.android.quickstep.inputconsumers.QuickCaptureTouchConsumer;
+import com.android.quickstep.inputconsumers.QuickCaptureInputConsumer;
 import com.android.quickstep.inputconsumers.ResetGestureInputConsumer;
 import com.android.quickstep.inputconsumers.ScreenPinnedInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
@@ -115,6 +117,7 @@
 
     private static final String KEY_BACK_NOTIFICATION_COUNT = "backNotificationCount";
     private static final String NOTIFY_ACTION_BACK = "com.android.quickstep.action.BACK_GESTURE";
+    private static final String HAS_ENABLED_QUICKSTEP_ONCE = "launcher.has_enabled_quickstep_once";
     private static final int MAX_BACK_NOTIFICATION_COUNT = 3;
     private int mBackGestureNotificationCounter = -1;
 
@@ -237,7 +240,6 @@
     private RecentsModel mRecentsModel;
     private OverviewCommandHelper mOverviewCommandHelper;
     private OverviewComponentObserver mOverviewComponentObserver;
-    private OverviewInteractionState mOverviewInteractionState;
     private InputConsumerController mInputConsumer;
     private RecentsAnimationDeviceState mDeviceState;
 
@@ -309,14 +311,13 @@
         }
         mMode = newMode;
         initInputMonitor();
+        resetHomeBounceSeenOnQuickstepEnabledFirstTime();
     }
 
     public void onUserUnlocked() {
         mRecentsModel = RecentsModel.INSTANCE.get(this);
         mOverviewComponentObserver = new OverviewComponentObserver(this, mDeviceState);
-
         mOverviewCommandHelper = new OverviewCommandHelper(this, mOverviewComponentObserver);
-        mOverviewInteractionState = OverviewInteractionState.INSTANCE.get(this);
         mInputConsumer = InputConsumerController.getRecentsAnimationInputConsumer();
 
         sSwipeSharedState.setOverviewComponentObserver(mOverviewComponentObserver);
@@ -328,12 +329,31 @@
         // new ModelPreload().start(this);
         mBackGestureNotificationCounter = Math.max(0, Utilities.getDevicePrefs(this)
                 .getInt(KEY_BACK_NOTIFICATION_COUNT, MAX_BACK_NOTIFICATION_COUNT));
+        resetHomeBounceSeenOnQuickstepEnabledFirstTime();
+    }
+
+    private void resetHomeBounceSeenOnQuickstepEnabledFirstTime() {
+        if (!mDeviceState.isUserUnlocked() || !mMode.hasGestures) {
+            // Skip if not yet unlocked (can't read user shared prefs) or if the current navigation
+            // mode doesn't have gestures
+            return;
+        }
+
+        // Reset home bounce seen on quick step enabled for first time
+        SharedPreferences sharedPrefs = Utilities.getPrefs(this);
+        if (!sharedPrefs.getBoolean(HAS_ENABLED_QUICKSTEP_ONCE, true)) {
+            sharedPrefs.edit()
+                    .putBoolean(HAS_ENABLED_QUICKSTEP_ONCE, true)
+                    .putBoolean(DiscoveryBounce.HOME_BOUNCE_SEEN, false)
+                    .apply();
+        }
     }
 
     @UiThread
     private void onSystemUiFlagsChanged() {
         if (mDeviceState.isUserUnlocked()) {
-            mOverviewInteractionState.setSystemUiStateFlags(mDeviceState.getSystemUiStateFlags());
+            SystemUiProxy.INSTANCE.get(this).setLastSystemUiStateFlags(
+                    mDeviceState.getSystemUiStateFlags());
             mOverviewComponentObserver.onSystemUiStateChanged();
         }
     }
@@ -434,11 +454,10 @@
 
             if (FeatureFlags.ENABLE_QUICK_CAPTURE_GESTURE.get()) {
                 // Put the Compose gesture as higher priority than the Assistant or base gestures
-                base = new QuickCaptureTouchConsumer(this, base,
-                    mInputMonitorCompat, mOverviewComponentObserver.getActivityControlHelper());
+                base = new QuickCaptureInputConsumer(this, base, mInputMonitorCompat,
+                        activityControl);
             }
 
-
             if (mDeviceState.isScreenPinningActive()) {
                 // Note: we only allow accessibility to wrap this, and it replaces the previous
                 // base input consumer (which should be NO_OP anyway since topTaskLocked == true).
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureTouchConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureInputConsumer.java
similarity index 96%
rename from quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureTouchConsumer.java
rename to quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureInputConsumer.java
index 3101bb8..ad9405f 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureTouchConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/QuickCaptureInputConsumer.java
@@ -40,13 +40,13 @@
 import com.android.systemui.shared.system.InputMonitorCompat;
 
 /**
- * Touch consumer for handling events to launch quick capture from launcher
+ * Input consumer for handling events to launch quick capture from launcher
  * @param <T> Draggable activity subclass used by RecentsView
  */
-public class QuickCaptureTouchConsumer<T extends BaseDraggingActivity>
+public class QuickCaptureInputConsumer<T extends BaseDraggingActivity>
         extends DelegateInputConsumer {
 
-    private static final String TAG = "QuickCaptureTouchConsumer";
+    private static final String TAG = "QuickCaptureInputConsumer";
 
     private static final String QUICK_CAPTURE_PACKAGE = "com.google.auxe.compose";
     private static final String QUICK_CAPTURE_PACKAGE_DEV = "com.google.auxe.compose.debug";
@@ -72,7 +72,7 @@
 
     private RecentsView mRecentsView;
 
-    public QuickCaptureTouchConsumer(Context context, InputConsumer delegate,
+    public QuickCaptureInputConsumer(Context context, InputConsumer delegate,
             InputMonitorCompat inputMonitor, ActivityControlHelper<T> activityControlHelper) {
         super(delegate, inputMonitor);
         mContext = context;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BackButtonAlphaHandler.java b/quickstep/src/com/android/launcher3/uioverrides/BackButtonAlphaHandler.java
index 693ae60..aa0dfc3 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BackButtonAlphaHandler.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BackButtonAlphaHandler.java
@@ -24,18 +24,18 @@
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager;
 import com.android.launcher3.anim.AnimatorSetBuilder;
-import com.android.quickstep.OverviewInteractionState;
+import com.android.launcher3.util.UiThreadHelper;
+import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.SystemUiProxy;
 
 public class BackButtonAlphaHandler implements LauncherStateManager.StateHandler {
 
     private static final String TAG = "BackButtonAlphaHandler";
 
     private final Launcher mLauncher;
-    private final OverviewInteractionState mOverviewInteractionState;
 
     public BackButtonAlphaHandler(Launcher launcher) {
         mLauncher = launcher;
-        mOverviewInteractionState = OverviewInteractionState.INSTANCE.get(mLauncher);
     }
 
     @Override
@@ -49,14 +49,23 @@
         if (!config.playNonAtomicComponent()) {
             return;
         }
-        float fromAlpha = mOverviewInteractionState.getBackButtonAlpha();
+
+        if (!SysUINavigationMode.getMode(mLauncher).hasGestures) {
+            // If the nav mode is not gestural, then force back button alpha to be 1
+            UiThreadHelper.setBackButtonAlphaAsync(mLauncher, UiFactory.SET_BACK_BUTTON_ALPHA, 1f,
+                    true /* animate */);
+            return;
+        }
+
+        float fromAlpha = SystemUiProxy.INSTANCE.get(mLauncher).getLastBackButtonAlpha();
         float toAlpha = toState.hideBackButton ? 0 : 1;
         if (Float.compare(fromAlpha, toAlpha) != 0) {
             ValueAnimator anim = ValueAnimator.ofFloat(fromAlpha, toAlpha);
             anim.setDuration(config.duration);
             anim.addUpdateListener(valueAnimator -> {
                 final float alpha = (float) valueAnimator.getAnimatedValue();
-                mOverviewInteractionState.setBackButtonAlpha(alpha, false);
+                UiThreadHelper.setBackButtonAlphaAsync(mLauncher, UiFactory.SET_BACK_BUTTON_ALPHA,
+                        alpha, false /* animate */);
             });
             anim.addListener(new AnimatorListenerAdapter() {
                 @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
index b0b5dcf..17c681b 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/UiFactory.java
@@ -51,11 +51,12 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.proxy.ProxyActivityStarter;
 import com.android.launcher3.proxy.StartActivityParams;
-import com.android.quickstep.OverviewInteractionState;
+import com.android.launcher3.util.UiThreadHelper;
 import com.android.quickstep.RecentsModel;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
+import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.RemoteFadeOutAnimationListener;
 import com.android.systemui.shared.system.ActivityCompat;
 
@@ -65,6 +66,15 @@
 
 public class UiFactory extends RecentsUiFactory {
 
+    /**
+     * Reusable command for applying the back button alpha on the background thread.
+     */
+    public static final UiThreadHelper.AsyncCommand SET_BACK_BUTTON_ALPHA =
+            (context, arg1, arg2) -> {
+        SystemUiProxy.INSTANCE.get(context).setBackButtonAlpha(Float.intBitsToFloat(arg1),
+                arg2 != 0);
+    };
+
     public static Runnable enableLiveUIChanges(Launcher launcher) {
         NavigationModeChangeListener listener = m -> {
             launcher.getDragLayer().recreateControllers();
@@ -88,7 +98,9 @@
      * Sets the back button visibility based on the current state/window focus.
      */
     public static void onLauncherStateOrFocusChanged(Launcher launcher) {
-        boolean shouldBackButtonBeHidden = launcher != null
+        Mode mode = SysUINavigationMode.getMode(launcher);
+        boolean shouldBackButtonBeHidden = mode.hasGestures
+                && launcher != null
                 && launcher.getStateManager().getState().hideBackButton
                 && launcher.hasWindowFocus();
         if (shouldBackButtonBeHidden) {
@@ -96,8 +108,8 @@
             shouldBackButtonBeHidden = AbstractFloatingView.getTopOpenViewWithType(launcher,
                     TYPE_ALL & ~TYPE_HIDE_BACK_BUTTON) == null;
         }
-        OverviewInteractionState.INSTANCE.get(launcher)
-                .setBackButtonAlpha(shouldBackButtonBeHidden ? 0 : 1, true /* animate */);
+        UiThreadHelper.setBackButtonAlphaAsync(launcher, UiFactory.SET_BACK_BUTTON_ALPHA,
+                shouldBackButtonBeHidden ? 0f : 1f, true /* animate */);
         if (launcher != null && launcher.getDragLayer() != null) {
             launcher.getRootView().setDisallowBackGesture(shouldBackButtonBeHidden);
         }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
index 9813295..ef6a5e2 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java
@@ -47,8 +47,8 @@
 import com.android.launcher3.uioverrides.states.OverviewState;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
-import com.android.quickstep.OverviewInteractionState;
 import com.android.quickstep.RecentsModel;
+import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TouchInteractionService;
 import com.android.quickstep.util.LayoutUtils;
 
@@ -137,8 +137,7 @@
         } else if (fromState == OVERVIEW) {
             return isDragTowardPositive ? ALL_APPS : NORMAL;
         } else if (fromState == NORMAL && isDragTowardPositive) {
-            int stateFlags = OverviewInteractionState.INSTANCE.get(mLauncher)
-                    .getSystemUiStateFlags();
+            int stateFlags = SystemUiProxy.INSTANCE.get(mLauncher).getLastSystemUiStateFlags();
             return mAllowDragToOverview && TouchInteractionService.isConnected()
                     && (stateFlags & SYSUI_STATE_OVERVIEW_DISABLED) == 0
                     ? OVERVIEW : ALL_APPS;
diff --git a/quickstep/src/com/android/quickstep/OverviewInteractionState.java b/quickstep/src/com/android/quickstep/OverviewInteractionState.java
deleted file mode 100644
index 6b68b19..0000000
--- a/quickstep/src/com/android/quickstep/OverviewInteractionState.java
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-package com.android.quickstep;
-
-import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
-
-import android.content.Context;
-import android.os.Handler;
-import android.os.Message;
-
-import androidx.annotation.WorkerThread;
-
-import com.android.launcher3.Utilities;
-import com.android.launcher3.allapps.DiscoveryBounce;
-import com.android.launcher3.util.MainThreadInitializedObject;
-
-/**
- * Sets alpha for the back button
- */
-public class OverviewInteractionState {
-
-    private static final String TAG = "OverviewFlags";
-
-    private static final String HAS_ENABLED_QUICKSTEP_ONCE = "launcher.has_enabled_quickstep_once";
-
-    // We do not need any synchronization for this variable as its only written on UI thread.
-    public static final MainThreadInitializedObject<OverviewInteractionState> INSTANCE =
-            new MainThreadInitializedObject<>(OverviewInteractionState::new);
-
-    private static final int MSG_SET_BACK_BUTTON_ALPHA = 201;
-
-    private final Context mContext;
-    private final Handler mUiHandler;
-    private final Handler mBgHandler;
-
-    // These are updated on the background thread
-    private float mBackButtonAlpha = 1;
-
-    private int mSystemUiStateFlags;
-
-    private OverviewInteractionState(Context context) {
-        mContext = context;
-
-        // Data posted to the uihandler will be sent to the bghandler. Data is sent to uihandler
-        // because of its high send frequency and data may be very different than the previous value
-        // For example, send back alpha on uihandler to avoid flickering when setting its visibility
-        mUiHandler = new Handler(this::handleUiMessage);
-        mBgHandler = new Handler(UI_HELPER_EXECUTOR.getLooper(), this::handleBgMessage);
-
-        onNavigationModeChanged(SysUINavigationMode.INSTANCE.get(context)
-                .addModeChangeListener(this::onNavigationModeChanged));
-    }
-
-    public float getBackButtonAlpha() {
-        return mBackButtonAlpha;
-    }
-
-    public void setBackButtonAlpha(float alpha, boolean animate) {
-        if (!modeSupportsGestures()) {
-            alpha = 1;
-        }
-        mUiHandler.removeMessages(MSG_SET_BACK_BUTTON_ALPHA);
-        mUiHandler.obtainMessage(MSG_SET_BACK_BUTTON_ALPHA, animate ? 1 : 0, 0, alpha)
-                .sendToTarget();
-    }
-
-    // TODO(141886704): See if we can remove this
-    public void setSystemUiStateFlags(int stateFlags) {
-        mSystemUiStateFlags = stateFlags;
-    }
-
-    public int getSystemUiStateFlags() {
-        return mSystemUiStateFlags;
-    }
-
-    private boolean handleUiMessage(Message msg) {
-        if (msg.what == MSG_SET_BACK_BUTTON_ALPHA) {
-            mBackButtonAlpha = (float) msg.obj;
-        }
-        mBgHandler.obtainMessage(msg.what, msg.arg1, msg.arg2, msg.obj).sendToTarget();
-        return true;
-    }
-
-    private boolean handleBgMessage(Message msg) {
-        switch (msg.what) {
-            case MSG_SET_BACK_BUTTON_ALPHA:
-                applyBackButtonAlpha((float) msg.obj, msg.arg1 == 1);
-                return true;
-        }
-        return true;
-    }
-
-    @WorkerThread
-    private void applyBackButtonAlpha(float alpha, boolean animate) {
-        SystemUiProxy.INSTANCE.get(mContext).setBackButtonAlpha(alpha, animate);
-    }
-
-    private void onNavigationModeChanged(SysUINavigationMode.Mode mode) {
-        resetHomeBounceSeenOnQuickstepEnabledFirstTime();
-    }
-
-    private void resetHomeBounceSeenOnQuickstepEnabledFirstTime() {
-        if (modeSupportsGestures() && !Utilities.getPrefs(mContext).getBoolean(
-                HAS_ENABLED_QUICKSTEP_ONCE, true)) {
-            Utilities.getPrefs(mContext).edit()
-                .putBoolean(HAS_ENABLED_QUICKSTEP_ONCE, true)
-                .putBoolean(DiscoveryBounce.HOME_BOUNCE_SEEN, false)
-                .apply();
-        }
-    }
-
-    private boolean modeSupportsGestures() {
-        return SysUINavigationMode.getMode(mContext).hasGestures;
-    }
-}
diff --git a/quickstep/src/com/android/quickstep/SysUINavigationMode.java b/quickstep/src/com/android/quickstep/SysUINavigationMode.java
index b67c6f8..5902672 100644
--- a/quickstep/src/com/android/quickstep/SysUINavigationMode.java
+++ b/quickstep/src/com/android/quickstep/SysUINavigationMode.java
@@ -57,7 +57,7 @@
 
     private static final String TAG = "SysUINavigationMode";
 
-    private final String ACTION_OVERLAY_CHANGED = "android.intent.action.OVERLAY_CHANGED";
+    private static final String ACTION_OVERLAY_CHANGED = "android.intent.action.OVERLAY_CHANGED";
     private static final String NAV_BAR_INTERACTION_MODE_RES_NAME =
             "config_navBarInteractionMode";
 
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index f37e679..5539b3e 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -46,6 +46,11 @@
     // Used to dedupe calls to SystemUI
     private int mLastShelfHeight;
     private boolean mLastShelfVisible;
+    private float mLastBackButtonAlpha;
+    private boolean mLastBackButtonAnimate;
+
+    // TODO(141886704): Find a way to remove this
+    private int mLastSystemUiStateFlags;
 
     public SystemUiProxy(Context context) {
         // Do nothing
@@ -63,6 +68,16 @@
         linkToDeath();
     }
 
+    // TODO(141886704): Find a way to remove this
+    public void setLastSystemUiStateFlags(int stateFlags) {
+        mLastSystemUiStateFlags = stateFlags;
+    }
+
+    // TODO(141886704): Find a way to remove this
+    public int getLastSystemUiStateFlags() {
+        return mLastSystemUiStateFlags;
+    }
+
     public boolean isActive() {
         return mSystemUiProxy != null;
     }
@@ -134,7 +149,11 @@
 
     @Override
     public void setBackButtonAlpha(float alpha, boolean animate) {
-        if (mSystemUiProxy != null) {
+        boolean changed = Float.compare(alpha, mLastBackButtonAlpha) != 0
+                || animate != mLastBackButtonAnimate;
+        if (mSystemUiProxy != null && changed) {
+            mLastBackButtonAlpha = alpha;
+            mLastBackButtonAnimate = animate;
             try {
                 mSystemUiProxy.setBackButtonAlpha(alpha, animate);
             } catch (RemoteException e) {
@@ -143,6 +162,10 @@
         }
     }
 
+    public float getLastBackButtonAlpha() {
+        return mLastBackButtonAlpha;
+    }
+
     @Override
     public void setNavBarButtonAlpha(float alpha, boolean animate) {
         if (mSystemUiProxy != null) {
diff --git a/src/com/android/launcher3/util/UiThreadHelper.java b/src/com/android/launcher3/util/UiThreadHelper.java
index fb1dc0d..a133f01 100644
--- a/src/com/android/launcher3/util/UiThreadHelper.java
+++ b/src/com/android/launcher3/util/UiThreadHelper.java
@@ -23,6 +23,7 @@
 import android.os.IBinder;
 import android.os.Message;
 import android.view.inputmethod.InputMethodManager;
+import com.android.launcher3.uioverrides.UiFactory;
 
 /**
  * Utility class for offloading some class from UI thread
@@ -52,10 +53,13 @@
                 .sendToTarget();
     }
 
-    public static void runAsyncCommand(Context context, AsyncCommand command, boolean arg1,
-            float arg2) {
-        Message.obtain(getHandler(context), MSG_RUN_COMMAND, arg1 ? 1 : 0,
-                Float.floatToIntBits(arg2), command).sendToTarget();
+    public static void setBackButtonAlphaAsync(Context context, AsyncCommand command, float alpha,
+            boolean animate) {
+        runAsyncCommand(context, command, Float.floatToIntBits(alpha), animate ? 1 : 0);
+    }
+
+    public static void runAsyncCommand(Context context, AsyncCommand command, int arg1, int arg2) {
+        Message.obtain(getHandler(context), MSG_RUN_COMMAND, arg1, arg2, command).sendToTarget();
     }
 
     private static class UiCallbacks implements Handler.Callback {
@@ -78,8 +82,7 @@
                     ((Activity) message.obj).setRequestedOrientation(message.arg1);
                     return true;
                 case MSG_RUN_COMMAND:
-                    ((AsyncCommand) message.obj).execute(mContext, message.arg1 == 1,
-                            Float.intBitsToFloat(message.arg2));
+                    ((AsyncCommand) message.obj).execute(mContext, message.arg1, message.arg2);
                     return true;
             }
             return false;
@@ -87,6 +90,6 @@
     }
 
     public interface AsyncCommand {
-        void execute(Context proxy, boolean state, float value);
+        void execute(Context proxy, int arg1, int arg2);
     }
 }