diff --git a/app/src/main/cpp/waylandcomp/src/compositor.c b/app/src/main/cpp/waylandcomp/src/compositor.c
index 63f0eed8a..75a16311e 100644
--- a/app/src/main/cpp/waylandcomp/src/compositor.c
+++ b/app/src/main/cpp/waylandcomp/src/compositor.c
@@ -750,6 +750,8 @@ static void take_shm(struct surface *s, struct wl_shm_buffer *shm, struct wl_res
 static struct surface *g_hud_surface;
 /* When the HUD's window last presented a frame (now_ns), to let a replacement take over. */
 static int64_t g_hud_last_ns;
+/* That window committed a frame the screen has not drawn yet. */
+static int g_hud_fresh;
 extern void banner_on_game_surface(const char *window, const char *gpu); /* window NULL = gone */
 extern void banner_on_game_frame(void);
 /* The program behind that window: its Linux pid (the Wayland client's credentials) and executable name
@@ -852,7 +854,7 @@ static void take_dmabuf(struct surface *s, struct dmabuf_buffer *b, struct wl_re
      * Asking whether the compositor could import it, as this used to, is a question about the
      * copy path and not about whether a frame happened: a game whose buffers go straight to
      * the display layer draws on screen while the counter sat at 0.0 fps and 1000.0 ms. */
-    if (s == g_hud_surface) { g_hud_last_ns = now_ns(); banner_on_game_frame(); }
+    if (s == g_hud_surface) { g_hud_last_ns = now_ns(); g_hud_fresh = 1; banner_on_game_frame(); }
 }
 
 /* ---- hooks for ahb_swapchain.c (zero-copy layers) */
@@ -2021,6 +2023,7 @@ static void render_scene(void) {
     int copy = 0; /* this scene went through the screen swapchain (the perf line's "copy") */
 
     g_dirty = 0;
+    g_hud_fresh = 0;
     g_hdr_unimported = NULL; /* found again while the scene is built (HDR gate open only) */
     wl_list_for_each(s, &g_surfaces, link) s->drawn = 0;
     scene_size(&w, &h);
@@ -2236,6 +2239,13 @@ static void schedule_render(void) {
     wl_event_source_timer_update(g_fallback_timer, 8);
 }
 
+/* With frame generation on, every scene is the engine's next source frame, so one drawn for
+ * another window (Steam's overlay) counted as a game frame and took its present slots. Such a
+ * change waits for the game's next frame, unless the game has been still for 100 ms. */
+static int scene_waits_for_game(int64_t now) {
+    return g_hud_surface && !g_hud_fresh && now - g_hud_last_ns < 100000000LL && vkp_framegen_active();
+}
+
 /* A screen refresh (Choreographer tick): draw the newest state once. */
 static void on_vsync(int64_t frame_time_ns) {
     int64_t now = now_ns();
@@ -2251,7 +2261,7 @@ static void on_vsync(int64_t frame_time_ns) {
     if (vkp_apply_window_request()) g_dirty = 1;
     /* A screen-effect setting changed (JNI, any thread): redraw so it shows on a static scene too. */
     if (vkp_effects_sync()) g_dirty = 1;
-    if (g_dirty) render_scene();
+    if (g_dirty && !scene_waits_for_game(now)) render_scene();
 }
 
 /* ------------------------------------------------------------------ wl_seat */
diff --git a/app/src/main/java/com/droiddeck/launcher/MainActivity.kt b/app/src/main/java/com/droiddeck/launcher/MainActivity.kt
index 3628375b5..ff1b48282 100644
--- a/app/src/main/java/com/droiddeck/launcher/MainActivity.kt
+++ b/app/src/main/java/com/droiddeck/launcher/MainActivity.kt
@@ -144,6 +144,7 @@ class MainActivity : ComponentActivity() {
     private var directAudio by mutableStateOf(false)
     private var clientDirectAudio by mutableStateOf(false)
     private var forceFullscreen by mutableStateOf(true)
+    private var stretch16x9 by mutableStateOf(false)
     private var launcherFullscreen by mutableStateOf(true)
     private var storeEnabled by mutableStateOf(false)
     private var appImagesEnabled by mutableStateOf(false)
@@ -958,6 +959,7 @@ class MainActivity : ComponentActivity() {
                 directAudio = if (mode == SessionService.MODE_STEAM) directAudio else null,
                 clientDirectAudio = clientDirectAudio,
                 forceFullscreen = if (mode == SessionService.MODE_STEAM) forceFullscreen else null,
+                stretch16x9 = if (mode == SessionService.MODE_STEAM) stretch16x9 else null,
                 mic = if (mode == SessionService.MODE_STEAM) mic else null,
                 renderer = if (mode == SessionService.MODE_DESKTOP) renderer else null,
                 gameStorage = if (mode == SessionService.MODE_STEAM) gameStorage else null,
@@ -993,6 +995,7 @@ class MainActivity : ComponentActivity() {
                 onDirectAudio = { on -> SessionPrefs.setDirectAudio(this, on); directAudio = on },
                 onClientDirectAudio = { on -> SessionPrefs.setClientDirectAudio(this, on); clientDirectAudio = on },
                 onForceFullscreen = { on -> SessionPrefs.setForceFullscreen(this, on); forceFullscreen = on },
+                onStretch16x9 = { on -> SessionPrefs.setStretch16x9(this, on); stretch16x9 = on },
                 onMic = { on ->
                     SessionPrefs.setMicEnabled(this, on)
                     mic = on
@@ -1119,6 +1122,7 @@ class MainActivity : ComponentActivity() {
         directAudio = SessionPrefs.directAudio(this)
         clientDirectAudio = SessionPrefs.clientDirectAudio(this)
         forceFullscreen = SessionPrefs.forceFullscreen(this)
+        stretch16x9 = SessionPrefs.stretch16x9(this)
         mic = SessionPrefs.micEnabled(this)
         renderer = SessionPrefs.desktopRenderer(this)
         gameStorage = SessionPrefs.gameStorage(this)
diff --git a/app/src/main/java/com/droiddeck/launcher/core/DeviceReport.kt b/app/src/main/java/com/droiddeck/launcher/core/DeviceReport.kt
index 16a9598e9..14df7559a 100644
--- a/app/src/main/java/com/droiddeck/launcher/core/DeviceReport.kt
+++ b/app/src/main/java/com/droiddeck/launcher/core/DeviceReport.kt
@@ -157,6 +157,7 @@ object DeviceReport {
         k("Guest host name", SessionPrefs.guestHostname(context))
         k("DirectAudio for games", SessionPrefs.directAudio(context))
         k("Stretch games to fill", SessionPrefs.forceFullscreen(context))
+        k("Stretch 16:9 to panel", SessionPrefs.stretch16x9(context))
         k("Client audio", if (SessionPrefs.clientDirectAudio(context)) "DirectAudio" else "classic")
         k("Microphone", SessionPrefs.micEnabled(context))
         k("On-screen controls", SessionPrefs.oscMode(context))
diff --git a/app/src/main/java/com/droiddeck/launcher/session/PerfHud.kt b/app/src/main/java/com/droiddeck/launcher/session/PerfHud.kt
index a9b5b0459..b3c3fd6ea 100644
--- a/app/src/main/java/com/droiddeck/launcher/session/PerfHud.kt
+++ b/app/src/main/java/com/droiddeck/launcher/session/PerfHud.kt
@@ -21,8 +21,9 @@ import java.util.concurrent.atomic.AtomicInteger
  * is on, what the screen is actually being shown - "60 → 118 fps" is the proof that the engine
  * is doing something, and "FG starting" or a reason is the proof that it is not.
  *
- * The base rate is counted here from the compositor's per-frame callback, so it is right with or
- * without an engine. The presented rate comes from the engine's own telemetry while it generates.
+ * The base rate is the game window's own frames, counted here from the compositor's per-frame
+ * callback with or without an engine - what Steam's overlay counts too. The presented rate comes
+ * from the engine's telemetry while it generates.
  */
 class PerfHud(context: Context) {
     /** Empty when the HUD is off or not yet started. */
@@ -99,10 +100,7 @@ class PerfHud(context: Context) {
         return when {
             problem == 1 -> context.getString(R.string.hud_fg_unsupported, name)
             problem == 2 -> context.getString(R.string.hud_fg_failed, name)
-            stats != null && stats[3] > 1f -> {
-                val source = if (stats[2] > 1f) stats[2] else base
-                String.format(Locale.US, "%s  %.0f → %.0f fps", label, source, stats[3])
-            }
+            stats != null && stats[3] > 1f -> String.format(Locale.US, "%s  %.0f → %.0f fps", label, base, stats[3])
             else -> context.getString(R.string.hud_fg_starting, label, fps(base))
         }
     }
diff --git a/app/src/main/java/com/droiddeck/launcher/session/SessionPrefs.kt b/app/src/main/java/com/droiddeck/launcher/session/SessionPrefs.kt
index 9eb8a1d35..687b0911a 100644
--- a/app/src/main/java/com/droiddeck/launcher/session/SessionPrefs.kt
+++ b/app/src/main/java/com/droiddeck/launcher/session/SessionPrefs.kt
@@ -184,6 +184,12 @@ object SessionPrefs {
         writeForceFullscreenFlag(context)
     }
 
+    fun stretch16x9(context: Context): Boolean = prefs(context).getBoolean("stretch16x9", false)
+
+    fun setStretch16x9(context: Context, on: Boolean) {
+        prefs(context).edit().putBoolean("stretch16x9", on).apply()
+    }
+
     /**
      * The same choice as a file the running session watches, so the drawer can change it live:
      * the session hands every change to gamescope, which reads GAMESCOPE_FORCE_WINDOWS_FULLSCREEN
diff --git a/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt b/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
index f0197bf9b..fd51da14b 100644
--- a/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
+++ b/app/src/main/java/com/droiddeck/launcher/session/SessionService.kt
@@ -540,6 +540,7 @@ class SessionService : Service() {
         if (steamHere) guest.add("BL_STEAM_CHANNEL=" + SessionPrefs.steamChannel(this))
         if (SessionState.mode == MODE_STEAM) {
             guest.add("BL_GAMESCOPE_FORCE_FULLSCREEN=" + (if (SessionPrefs.forceFullscreen(this)) "1" else "0"))
+            guest.add("BL_GAMESCOPE_STRETCH_16X9=" + (if (SessionPrefs.stretch16x9(this)) "1" else "0"))
             SessionPrefs.writeForceFullscreenFlag(this)
         }
         // Proton's own gate for its xalia helper (its `proton` script reads this, and sets
diff --git a/app/src/main/java/com/droiddeck/launcher/ui/ModeSettingsDialog.kt b/app/src/main/java/com/droiddeck/launcher/ui/ModeSettingsDialog.kt
index d9f26e6b4..2a2f4a561 100644
--- a/app/src/main/java/com/droiddeck/launcher/ui/ModeSettingsDialog.kt
+++ b/app/src/main/java/com/droiddeck/launcher/ui/ModeSettingsDialog.kt
@@ -68,6 +68,7 @@ class ModeSettings(
     val fexPreset: String? = null,
     /** Steam only: games are stretched to fill the screen (null = not a Steam page). */
     val forceFullscreen: Boolean? = null,
+    val stretch16x9: Boolean? = null,
     /** Steam only: the client branch forced on the command line. */
     val steamChannel: String? = null,
     /** Steam only: enable the SteamOS client interface and its performance controls. */
@@ -117,6 +118,7 @@ class ModeSettingsActions(
     val onPickGameStorageFolder: () -> Unit = {},
     val onFexPreset: (String) -> Unit = {},
     val onForceFullscreen: (Boolean) -> Unit = {},
+    val onStretch16x9: (Boolean) -> Unit = {},
     val onSteamChannel: (String) -> Unit = {},
     val onSteamDeckMode: (Boolean) -> Unit = {},
     val onMangoapp: (Boolean) -> Unit = {},
@@ -361,6 +363,11 @@ fun ModeSettingsPage(s: ModeSettings, a: ModeSettingsActions) {
                 "Keeps games that resize their own window (FlatOut) full screen. Turn it off if a game shows up small in a corner (Quake 3). Applies next session.",
                 s.forceFullscreen, onChange = a.onForceFullscreen,
             )
+            if (s.stretch16x9 != null) ToggleRow(
+                host, "stretch169", "Stretch 16:9 games to a narrower screen",
+                "On a screen squarer than 16:9 (a foldable's inner panel), games render at 16:9 and are stretched to fill it: no bars, slightly wider-looking. Applies next session.",
+                s.stretch16x9, onChange = a.onStretch16x9,
+            )
         }
         if (steam && s.directAudio != null && s.mic != null) SettingsGroup("Audio") {
             ToggleRow(host, "da", "DirectAudio for games", "Bypasses PulseAudio for lower latency in games.", s.directAudio, onChange = a.onDirectAudio)
diff --git a/tools/linuxfs/overlay/usr/local/bin/bannerlator-session b/tools/linuxfs/overlay/usr/local/bin/bannerlator-session
index 89c35ce3e..1f55e3089 100755
--- a/tools/linuxfs/overlay/usr/local/bin/bannerlator-session
+++ b/tools/linuxfs/overlay/usr/local/bin/bannerlator-session
@@ -140,7 +140,16 @@ if [ -z "${BL_INSIDE:-}" ]; then
   fi
   width=${BL_WIDTH:-1280}
   height=${BL_HEIGHT:-720}
-  args=(--backend wayland --expose-wayland -f -W "$width" -H "$height" -w "$width" -h "$height")
+  nested=$width
+  if [ "$mode" = steam ] && [ "${BL_GAMESCOPE_STRETCH_16X9:-0}" = 1 ]; then
+    wide=$(( (height * 16 + 4) / 9 / 2 * 2 ))
+    if [ "$wide" -gt "$width" ]; then
+      nested=$wide
+      echo "== gamescope: games at ${nested}x${height} stretched to the ${width}x${height} output"
+    fi
+  fi
+  args=(--backend wayland --expose-wayland -f -W "$width" -H "$height" -w "$nested" -h "$height")
+  [ "$nested" != "$width" ] && args+=(-S stretch)
   # -r is what gamescope advertises as the refresh rate, and what a game reads as the display's.
   # Left unset it defaults to 60, so a 120 Hz panel offers only 60 Hz in game settings. The FPS
   # limiter wins when it is on (it is a deliberate cap); otherwise use the panel's own rate.