diff --git a/quickstep/res/values/override.xml b/quickstep/res/values/override.xml
index 67be0dd..860abc1 100644
--- a/quickstep/res/values/override.xml
+++ b/quickstep/res/values/override.xml
@@ -27,6 +27,8 @@
 
   <string name="nav_handle_long_press_handler_class" translatable="false"></string>
 
+  <string name="assist_utils_class" translatable="false"></string>
+
   <string name="secondary_display_predictions_class" translatable="false">com.android.launcher3.secondarydisplay.SecondaryDisplayPredictionsImpl</string>
 
   <string name="taskbar_model_callbacks_factory_class" translatable="false">com.android.launcher3.taskbar.TaskbarModelCallbacksFactory</string>
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
index 0f8de34..993f13e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
@@ -51,6 +51,7 @@
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskUtils;
 import com.android.quickstep.TouchInteractionService;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.quickstep.views.DesktopTaskView;
 
 import java.io.PrintWriter;
@@ -158,7 +159,7 @@
         switch (buttonType) {
             case BUTTON_HOME:
                 logEvent(LAUNCHER_TASKBAR_HOME_BUTTON_LONGPRESS);
-                startAssistant();
+                onLongPressHome();
                 return true;
             case BUTTON_A11Y:
                 logEvent(LAUNCHER_TASKBAR_A11Y_BUTTON_LONGPRESS);
@@ -307,13 +308,17 @@
         }
     }
 
-    private void startAssistant() {
+    private void onLongPressHome() {
         if (mScreenPinned || !mAssistantLongPressEnabled) {
             return;
         }
-        Bundle args = new Bundle();
-        args.putInt(INVOCATION_TYPE_KEY, INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS);
-        mSystemUiProxy.startAssistant(args);
+        // Attempt to start Assist with AssistUtils, otherwise fall back to SysUi's implementation.
+        if (!AssistUtilsBase.newInstance(mService.getApplicationContext()).tryStartAssistOverride(
+                INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS)) {
+            Bundle args = new Bundle();
+            args.putInt(INVOCATION_TYPE_KEY, INVOCATION_TYPE_HOME_BUTTON_LONG_PRESS);
+            mSystemUiProxy.startAssistant(args);
+        }
     }
 
     private void showQuickSettings() {
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index e73b525..823e137 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -62,6 +62,7 @@
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.SplitConfigurationOptions;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
@@ -250,6 +251,8 @@
         setBackToLauncherCallback(mBackToLauncherCallback, mBackToLauncherRunner);
         setUnfoldAnimationListener(mUnfoldAnimationListener);
         setDesktopTaskListener(mDesktopTaskListener);
+        setAssistantOverridesRequested(
+                AssistUtilsBase.newInstance(mContext).getSysUiAssistOverrideInvocationTypes());
     }
 
     /**
@@ -374,6 +377,17 @@
     }
 
     @Override
+    public void setAssistantOverridesRequested(int[] invocationTypes) {
+        if (mSystemUiProxy != null) {
+            try {
+                mSystemUiProxy.setAssistantOverridesRequested(invocationTypes);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Failed call setAssistantOverridesRequested", e);
+            }
+        }
+    }
+
+    @Override
     public void notifyAccessibilityButtonClicked(int displayId) {
         if (mSystemUiProxy != null) {
             try {
diff --git a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
index 06f1f9a..076f4b1 100644
--- a/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
+++ b/quickstep/src/com/android/quickstep/TaskOverlayFactory.java
@@ -122,6 +122,12 @@
     public void removeListeners() {
     }
 
+    /**
+     * Clears any active state outside of the TaskOverlay lifecycle which might have built
+     * up over time
+     */
+    public void clearAllActiveState() { }
+
     /** Note that these will be shown in order from top to bottom, if available for the task. */
     private static final TaskShortcutFactory[] MENU_OPTIONS = new TaskShortcutFactory[]{
             TaskShortcutFactory.APP_INFO,
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 22aca25..cd88894 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -117,6 +117,7 @@
 import com.android.quickstep.inputconsumers.TrackpadStatusBarInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.ActiveGestureLog.CompoundString;
+import com.android.quickstep.util.AssistUtilsBase;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -280,6 +281,20 @@
             }));
         }
 
+        /**
+         * Sent when the assistant has been invoked with the given type (defined in AssistManager)
+         * and should be shown. This method is used if SystemUiProxy#setAssistantOverridesRequested
+         * was previously called including this invocation type.
+         */
+        @Override
+        public void onAssistantOverrideInvoked(int invocationType) {
+            executeForTouchInteractionService(tis -> {
+                if (!AssistUtilsBase.newInstance(tis).tryStartAssistOverride(invocationType)) {
+                    Log.w(TAG, "Failed to invoke Assist override");
+                }
+            });
+        }
+
         @Override
         public void onNavigationBarSurface(SurfaceControl surface) {
             // TODO: implement
diff --git a/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java b/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java
new file mode 100644
index 0000000..7b27020
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/AssistUtilsBase.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2023 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.util;
+
+import android.content.Context;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.ResourceBasedOverride;
+
+/** Utilities to work with Assistant functionality. */
+public class AssistUtilsBase implements ResourceBasedOverride {
+
+    public AssistUtilsBase() {}
+
+    /** Creates AssistUtils as specified by overrides */
+    public static AssistUtilsBase newInstance(Context context) {
+        return Overrides.getObject(AssistUtilsBase.class, context, R.string.assist_utils_class);
+    }
+
+    /** @return Array of AssistUtils.INVOCATION_TYPE_* that we want to handle instead of SysUI. */
+    public int[] getSysUiAssistOverrideInvocationTypes() {
+        return new int[0];
+    }
+
+    /**
+     * @return {@code true} if the override was handled, i.e. an assist surface was shown or the
+     * request should be ignored. {@code false} means the caller should start assist another way.
+     */
+    public boolean tryStartAssistOverride(int invocationType) {
+        return false;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index cb5b457..be9da34 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1396,6 +1396,7 @@
             // its thumbnail
             mTmpRunningTasks = null;
             mSplitBoundsConfig = null;
+            mTaskOverlayFactory.clearAllActiveState();
         }
         updateLocusId();
     }
diff --git a/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
index 9622619..b3d04c6 100644
--- a/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
+++ b/quickstep/tests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
@@ -26,6 +26,7 @@
 import android.os.Handler;
 import android.view.View;
 
+import androidx.test.platform.app.InstrumentationRegistry;
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.logging.StatsLogManager;
@@ -70,6 +71,9 @@
         MockitoAnnotations.initMocks(this);
         when(mockService.getDisplayId()).thenReturn(DISPLAY_ID);
         when(mockService.getOverviewCommandHelper()).thenReturn(mockCommandHelper);
+        when(mockService.getApplicationContext())
+                .thenReturn(InstrumentationRegistry.getInstrumentation().getTargetContext()
+                        .getApplicationContext());
         when(mockStatsLogManager.logger()).thenReturn(mockStatsLogger);
         when(mockTaskbarControllers.getTaskbarActivityContext())
                 .thenReturn(mockTaskbarActivityContext);
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java b/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
index 1aa7ab6..92b598b 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsSplitscreen.java
@@ -25,6 +25,8 @@
 
 import android.content.Intent;
 
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
 import com.android.launcher3.config.FeatureFlags;
@@ -36,7 +38,10 @@
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
 
+@LargeTest
+@RunWith(AndroidJUnit4.class)
 public class TaplTestsSplitscreen extends AbstractQuickStepTest {
     private static final String CALCULATOR_APP_NAME = "Calculator";
     private static final String CALCULATOR_APP_PACKAGE =