Disable dynamic resolution on render targets created during and after FSR2 upscaling.

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/PostProcessLayer.cs

@@ -291,6 +291,11 @@ namespace UnityEngine.Rendering.PostProcessing
                 m_opaqueOnly = null;
             }
 
+            if (m_CurrentContext.IsSuperResolutionActive())
+            {
+                RuntimeUtilities.EnableDynamicResolution = true;
+            }
+            
             if (!finalBlitToCameraTarget && m_CurrentContext.IsSuperResolutionActive())
             {
                 // Set the camera back to its original parameters, so we can output at full display resolution
@@ -1183,6 +1188,7 @@ namespace UnityEngine.Rendering.PostProcessing
                     
                     // Set the upscaler's output to full display resolution, as well as for all following post-processing effects
                     context.SetRenderSize(superResolution.displaySize);
+                    RuntimeUtilities.EnableDynamicResolution = false;
                     
                     var fsrTarget = m_TargetPool.Get();
                     var finalDestination = context.destination;

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Utils/RuntimeUtilities.cs

@@ -1010,6 +1010,8 @@ namespace UnityEngine.Rendering.PostProcessing
                 && layer.temporalAntialiasing.IsSupported();
         }
 #if UNITY_2017_3_OR_NEWER
+        public static bool EnableDynamicResolution = true;
+        
         /// <summary>
         /// Checks if dynamic resolution is enabled on a given camera.
         /// </summary>
@@ -1017,7 +1019,7 @@ namespace UnityEngine.Rendering.PostProcessing
         /// <returns><c>true</c> if dynamic resolution is enabled, <c>false</c> otherwise</returns>
         public static bool IsDynamicResolutionEnabled(Camera camera)
         {
-            return camera.allowDynamicResolution || (camera.targetTexture != null && camera.targetTexture.useDynamicScale);
+            return EnableDynamicResolution && (camera.allowDynamicResolution || (camera.targetTexture != null && camera.targetTexture.useDynamicScale));
         }
 #endif
         /// <summary>