diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
index 2b1c47f600701..630fb360cc14b 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
@@ -123,6 +123,8 @@ public class QuickStepContract {
     public static final int SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED = 1 << 23;
     // The current app is in immersive mode
     public static final int SYSUI_STATE_IMMERSIVE_MODE = 1 << 24;
+    // The voice interaction session window is showing
+    public static final int SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING = 1 << 25;
 
     @Retention(RetentionPolicy.SOURCE)
     @IntDef({SYSUI_STATE_SCREEN_PINNING,
@@ -149,7 +151,8 @@ public class QuickStepContract {
             SYSUI_STATE_DEVICE_DOZING,
             SYSUI_STATE_BACK_DISABLED,
             SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED,
-            SYSUI_STATE_IMMERSIVE_MODE
+            SYSUI_STATE_IMMERSIVE_MODE,
+            SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING
     })
     public @interface SystemUiStateFlags {}
 
@@ -184,6 +187,7 @@ public class QuickStepContract {
         str.add((flags & SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED) != 0
                 ? "bubbles_mange_menu_expanded" : "");
         str.add((flags & SYSUI_STATE_IMMERSIVE_MODE) != 0 ? "immersive_mode" : "");
+        str.add((flags & SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING) != 0 ? "vis_win_showing" : "");
         return str.toString();
     }
 
@@ -254,9 +258,11 @@ public class QuickStepContract {
      * disabled.
      */
     public static boolean isBackGestureDisabled(int sysuiStateFlags) {
-        // Always allow when the bouncer/global actions is showing (even on top of the keyguard)
+        // Always allow when the bouncer/global actions/voice session is showing (even on top of
+        // the keyguard)
         if ((sysuiStateFlags & SYSUI_STATE_BOUNCER_SHOWING) != 0
-                || (sysuiStateFlags & SYSUI_STATE_DIALOG_SHOWING) != 0) {
+                || (sysuiStateFlags & SYSUI_STATE_DIALOG_SHOWING) != 0
+                || (sysuiStateFlags & SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING) != 0) {
             return false;
         }
         if ((sysuiStateFlags & SYSUI_STATE_ALLOW_GESTURE_IGNORING_BAR_VISIBILITY) != 0) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
index c723fbb9a6e1a..9768e706764f6 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
@@ -41,6 +41,7 @@ import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_D
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_TRACING_ENABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING;
 
 import android.annotation.FloatRange;
 import android.app.ActivityTaskManager;
@@ -77,6 +78,8 @@ import androidx.annotation.NonNull;
 
 import com.android.internal.accessibility.dialog.AccessibilityButtonChooserActivity;
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.app.AssistUtils;
+import com.android.internal.app.IVoiceInteractionSessionListener;
 import com.android.internal.logging.UiEventLogger;
 import com.android.internal.policy.ScreenDecorationsUtils;
 import com.android.internal.util.ScreenshotHelper;
@@ -551,6 +554,30 @@ public class OverviewProxyService extends CurrentUserTracker implements
     private final IBinder.DeathRecipient mOverviewServiceDeathRcpt
             = this::cleanupAfterDeath;
 
+    private final IVoiceInteractionSessionListener mVoiceInteractionSessionListener =
+            new IVoiceInteractionSessionListener.Stub() {
+        @Override
+        public void onVoiceSessionShown() {
+            // Do nothing
+        }
+
+        @Override
+        public void onVoiceSessionHidden() {
+            // Do nothing
+        }
+
+        @Override
+        public void onVoiceSessionWindowVisibilityChanged(boolean visible) {
+            mContext.getMainExecutor().execute(() ->
+                    OverviewProxyService.this.onVoiceSessionWindowVisibilityChanged(visible));
+        }
+
+        @Override
+        public void onSetUiHints(Bundle hints) {
+            // Do nothing
+        }
+    };
+
     @SuppressWarnings("OptionalUsedAsFieldOrParameterType")
     @Inject
     public OverviewProxyService(Context context, CommandQueue commandQueue,
@@ -569,6 +596,7 @@ public class OverviewProxyService extends CurrentUserTracker implements
             ScreenLifecycle screenLifecycle,
             UiEventLogger uiEventLogger,
             KeyguardUnlockAnimationController sysuiUnlockAnimationController,
+            AssistUtils assistUtils,
             DumpManager dumpManager) {
         super(broadcastDispatcher);
         mContext = context;
@@ -640,6 +668,9 @@ public class OverviewProxyService extends CurrentUserTracker implements
         startConnectionToCurrentUser();
         mStartingSurface = startingSurface;
         mSysuiUnlockAnimationController = sysuiUnlockAnimationController;
+
+        // Listen for assistant changes
+        assistUtils.registerVoiceInteractionSessionListener(mVoiceInteractionSessionListener);
     }
 
     @Override
@@ -648,6 +679,11 @@ public class OverviewProxyService extends CurrentUserTracker implements
         internalConnectToCurrentUser();
     }
 
+    public void onVoiceSessionWindowVisibilityChanged(boolean visible) {
+        mSysUiState.setFlag(SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING, visible)
+                .commitUpdate(mContext.getDisplayId());
+    }
+
     public void notifyBackAction(boolean completed, int downX, int downY, boolean isButton,
             boolean gestureSwipeLeft) {
         try {