diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index b444b49..4c701c7 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -132,6 +132,7 @@
 import com.android.launcher3.uioverrides.touchcontrollers.TransposedQuickSwitchTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.TwoButtonNavbarTouchController;
 import com.android.launcher3.util.ActivityOptionsWrapper;
+import com.android.launcher3.util.BackPressHandler;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.IntSet;
@@ -229,7 +230,8 @@
         mSplitSelectStateController =
                 new SplitSelectStateController(this, mHandler, getStateManager(),
                         getDepthController(), getStatsLogManager(),
-                        SystemUiProxy.INSTANCE.get(this), RecentsModel.INSTANCE.get(this));
+                        SystemUiProxy.INSTANCE.get(this), RecentsModel.INSTANCE.get(this),
+                        () -> onStateBack());
         overviewPanel.init(mActionsView, mSplitSelectStateController);
         mSplitWithKeyboardShortcutController = new SplitWithKeyboardShortcutController(this,
                 mSplitSelectStateController);
@@ -254,6 +256,7 @@
         mEnableWidgetDepth = SystemProperties.getBoolean("ro.launcher.depth.widget", true);
         getWorkspace().addOverlayCallback(progress ->
                 onTaskbarInAppDisplayProgressUpdate(progress, MINUS_ONE_PAGE_PROGRESS_INDEX));
+        addBackAnimationCallback(mSplitSelectStateController.getSplitBackHandler());
     }
 
     @Override
@@ -479,6 +482,7 @@
         mHotseatPredictionController.destroy();
         mSplitWithKeyboardShortcutController.onDestroy();
         if (mViewCapture != null) mViewCapture.close();
+        removeBackAnimationCallback(mSplitSelectStateController.getSplitBackHandler());
     }
 
     @Override
@@ -663,6 +667,10 @@
         anim.buildAnim().start();
     }
 
+    @Override
+    protected boolean isSplitSelectionEnabled() {
+        return mSplitSelectStateController.isSplitSelectActive();
+    }
 
     @Override
     protected void onResume() {
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 72439de..d66421f 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -136,7 +136,8 @@
         mSplitSelectStateController =
                 new SplitSelectStateController(this, mHandler, getStateManager(),
                         null /* depthController */, getStatsLogManager(),
-                        SystemUiProxy.INSTANCE.get(this), RecentsModel.INSTANCE.get(this));
+                        SystemUiProxy.INSTANCE.get(this), RecentsModel.INSTANCE.get(this),
+                        null /*activityBackCallback*/);
         mDragLayer.recreateControllers();
         mFallbackRecentsView.init(mActionsView, mSplitSelectStateController);
 
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 6d5aa16..6865935 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -42,7 +42,6 @@
 import android.app.ActivityOptions;
 import android.app.ActivityThread;
 import android.app.PendingIntent;
-import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ShortcutInfo;
@@ -77,8 +76,10 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statemanager.StateManager;
+import com.android.launcher3.statemanager.StatefulActivity;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
+import com.android.launcher3.util.BackPressHandler;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
 import com.android.quickstep.OverviewComponentObserver;
@@ -113,9 +114,11 @@
 public class SplitSelectStateController {
     private static final String TAG = "SplitSelectStateCtor";
 
-    private Context mContext;
+    private StatefulActivity mContext;
     private final Handler mHandler;
     private final RecentsModel mRecentTasksModel;
+    @Nullable
+    private final Runnable mActivityBackCallback;
     private final SplitAnimationController mSplitAnimationController;
     private final AppPairsController mAppPairsController;
     private final SplitSelectDataHolder mSplitSelectDataHolder;
@@ -142,9 +145,28 @@
 
     private final List<SplitSelectionListener> mSplitSelectionListeners = new ArrayList<>();
 
-    public SplitSelectStateController(Context context, Handler handler, StateManager stateManager,
-            DepthController depthController, StatsLogManager statsLogManager,
-            SystemUiProxy systemUiProxy, RecentsModel recentsModel) {
+    private final BackPressHandler mSplitBackHandler = new BackPressHandler() {
+        @Override
+        public boolean canHandleBack() {
+            return FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get() &&
+                    isSplitSelectActive();
+        }
+
+        @Override
+        public void onBackInvoked() {
+            // When exiting from split selection, leave current context to go to
+            // homescreen as well
+            getSplitAnimationController().playPlaceholderDismissAnim(mContext);
+            if (mActivityBackCallback != null) {
+                mActivityBackCallback.run();
+            }
+        }
+    };
+
+    public SplitSelectStateController(StatefulActivity context, Handler handler,
+            StateManager stateManager, DepthController depthController,
+            StatsLogManager statsLogManager, SystemUiProxy systemUiProxy, RecentsModel recentsModel,
+            Runnable activityBackCallback) {
         mContext = context;
         mHandler = handler;
         mStatsLogManager = statsLogManager;
@@ -152,6 +174,7 @@
         mStateManager = stateManager;
         mDepthController = depthController;
         mRecentTasksModel = recentsModel;
+        mActivityBackCallback = activityBackCallback;
         mSplitAnimationController = new SplitAnimationController(this);
         mAppPairsController = new AppPairsController(context, this, statsLogManager);
         mSplitSelectDataHolder = new SplitSelectDataHolder(mContext);
@@ -716,6 +739,10 @@
         return mAppPairsController;
     }
 
+    public BackPressHandler getSplitBackHandler() {
+        return mSplitBackHandler;
+    }
+
     public void dump(String prefix, PrintWriter writer) {
         if (mSplitSelectDataHolder != null) {
             mSplitSelectDataHolder.dump(prefix, writer);
diff --git a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
index f250b8c..92ffcd0 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
@@ -1,3 +1,18 @@
+/*
+ * 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.views;
 
 import static com.android.app.animation.Interpolators.LINEAR;
@@ -47,8 +62,6 @@
  * {@link #addConfirmAnimation(PendingAnimation, RectF, Rect, boolean, boolean)}
  * giving a starting and ending bounds. Currently this is set to use the split placeholder view,
  * but it could be generified.
- *
- * TODO: Figure out how to copy thumbnail data from existing TaskView to this view.
  */
 public class FloatingTaskView extends FrameLayout {
 
diff --git a/quickstep/tests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt b/quickstep/tests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
index 69109c2..4e7fcf0 100644
--- a/quickstep/tests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
+++ b/quickstep/tests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
@@ -31,6 +31,7 @@
 import com.android.launcher3.model.data.ItemInfo
 import com.android.launcher3.statehandlers.DepthController
 import com.android.launcher3.statemanager.StateManager
+import com.android.launcher3.statemanager.StatefulActivity
 import com.android.launcher3.util.ComponentKey
 import com.android.launcher3.util.SplitConfigurationOptions
 import com.android.launcher3.util.withArgCaptor
@@ -58,7 +59,7 @@
     @Mock lateinit var statsLogManager: StatsLogManager
     @Mock lateinit var stateManager: StateManager<LauncherState>
     @Mock lateinit var handler: Handler
-    @Mock lateinit var context: Context
+    @Mock lateinit var context: StatefulActivity<*>
     @Mock lateinit var recentsModel: RecentsModel
     @Mock lateinit var pendingIntent: PendingIntent
 
@@ -81,7 +82,8 @@
                 depthController,
                 statsLogManager,
                 systemUiProxy,
-                recentsModel
+                recentsModel,
+                null /*activityBackCallback*/
             )
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index ffb8b82..439cc00 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -199,6 +199,7 @@
 import com.android.launcher3.util.ActivityResultInfo;
 import com.android.launcher3.util.ActivityTracker;
 import com.android.launcher3.util.CannedAnimationCoordinator;
+import com.android.launcher3.util.BackPressHandler;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
@@ -425,6 +426,8 @@
     private final CannedAnimationCoordinator mAnimationCoordinator =
             new CannedAnimationCoordinator(this);
 
+    private final List<BackPressHandler> mBackPressedHandlers = new ArrayList<>();
+
     @Override
     @TargetApi(Build.VERSION_CODES.S)
     protected void onCreate(Bundle savedInstanceState) {
@@ -604,6 +607,7 @@
      *  <li> auto cancel action mode handler
      *  <li> drag handler
      *  <li> view handler
+     *  <li> registered {@link BackPressHandler}
      *  <li> state handler
      * </ol>
      *
@@ -633,7 +637,14 @@
             return topView;
         }
 
-        // #4 state handler
+        // #4 Custom back handlers
+        for (BackPressHandler handler : mBackPressedHandlers) {
+            if (handler.canHandleBack()) {
+                return handler;
+            }
+        }
+
+        // #5 state handler
         return new OnBackAnimationCallback() {
             @Override
             public void onBackInvoked() {
@@ -3281,6 +3292,14 @@
         updateDisallowBack();
     }
 
+    protected void addBackAnimationCallback(BackPressHandler callback) {
+        mBackPressedHandlers.add(callback);
+    }
+
+    protected void removeBackAnimationCallback(BackPressHandler callback) {
+        mBackPressedHandlers.remove(callback);
+    }
+
     private void updateDisallowBack() {
         if (DESKTOP_MODE_1_SUPPORTED || DESKTOP_MODE_2_SUPPORTED) {
             // Do not disable back in launcher when prototype behavior is enabled
@@ -3288,12 +3307,20 @@
         }
         LauncherRootView rv = getRootView();
         if (rv != null) {
+            boolean isSplitSelectionEnabled = isSplitSelectionEnabled();
             boolean disableBack = getStateManager().getState() == NORMAL
-                    && AbstractFloatingView.getTopOpenView(this) == null;
+                    && AbstractFloatingView.getTopOpenView(this) == null
+                    && !isSplitSelectionEnabled;
             rv.setDisallowBackGesture(disableBack);
         }
     }
 
+    /** To be overridden by subclasses */
+    protected boolean isSplitSelectionEnabled() {
+        // Overridden
+        return false;
+    }
+
     @Override
     public void returnToHomescreen() {
         super.returnToHomescreen();
diff --git a/src/com/android/launcher3/util/BackPressHandler.java b/src/com/android/launcher3/util/BackPressHandler.java
new file mode 100644
index 0000000..b63f648
--- /dev/null
+++ b/src/com/android/launcher3/util/BackPressHandler.java
@@ -0,0 +1,30 @@
+/*
+ * 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.launcher3.util;
+
+import android.os.Build;
+import android.window.OnBackAnimationCallback;
+
+import androidx.annotation.RequiresApi;
+
+/**
+ * Extension of {@link OnBackAnimationCallback} that allows a check to determine
+ * if this callback supports handling back or not
+ */
+@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+public interface BackPressHandler extends OnBackAnimationCallback {
+    boolean canHandleBack();
+}