Simplify Singleton in RendererUIManager

Patch/Game/scnGamePatch.cs

@@ -131,7 +131,7 @@ public static class scnGamePatch
         var isLooping = __instance.levelData.miscSettings.GetBool("loopVideo");
             
         // Initialize player. If targetTexture is null (CameraFarPlane mode), it will build a quad in front of targetCamera.
-        player.Init(videoPath, __instance.videoBG?.targetTexture, isLooping, targetCamera, __instance.videoBG.gameObject);
+        player.Init(videoPath, __instance.videoBG.targetTexture, isLooping, targetCamera, __instance.videoBG.gameObject);
 
         return false; // Skip original UpdateVideo
     }

UI/RendererUIManager.cs

@@ -50,20 +50,7 @@ internal sealed class RendererFontProvider : IFontProvider
 
 internal class RendererUIManager : MonoBehaviour
 {
-    private static RendererUIManager? _instance;
-    public static RendererUIManager Instance
-    {
-        get
-        {
-            if (_instance != null) return _instance;
-            
-            var go = new GameObject("RendererUIManager");
-            DontDestroyOnLoad(go);
-            
-            _instance = go.AddComponent<RendererUIManager>();
-            return _instance;
-        }
-    }
+    public static RendererUIManager Instance = null!;
 
     public static O5Context Context => Instance._context;
     public O5WindowManager WindowManager => _windowManager;
@@ -72,7 +59,7 @@ internal class RendererUIManager : MonoBehaviour
     private O5WindowManager _windowManager = null!;
 
     private void Awake() {
-        _instance = this;
+        Instance = this;
         
         _context = new O5Context(
             config: new O5Config {
@@ -118,7 +105,5 @@ internal class RendererUIManager : MonoBehaviour
     private void OnDestroy() {
         _windowManager.Dispose();
         _context.Dispose();
-        
-        if (_instance == this) _instance = null;
     }
 }