Use DestroyImmediate when the scene is not running, to appease Unity's warnings.

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/RenderPass/Upscalers/FSR3/Fsr3UpscalerResources.cs

@@ -207,7 +207,14 @@ namespace FidelityFX
             if (resource == null)
                 return;
             
+#if UNITY_EDITOR
+            if (Application.isPlaying && !UnityEditor.EditorApplication.isPaused)
                 UnityEngine.Object.Destroy(resource);
+            else
+                UnityEngine.Object.DestroyImmediate(resource);
+#else
+            UnityEngine.Object.Destroy(resource);
+#endif
             resource = null;
         }