Load upscaler plugin upon first access of the main class. Makes the whole Load/IsLoaded situation a lot simpler.

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

@@ -19,10 +19,14 @@ namespace UnityEngine.Rendering.HighDefinition.AMD
         private static UpscalerPlugin _activePlugin = AvailablePlugins[0];
         public static UpscalerPlugin ActivePlugin => _activePlugin;
 
+        static AMDUnityPlugin()
+        {
+            _ = Load();
+        }
+
         public static bool Load() => ActivePlugin.Load();
  
-        // HDRP never calls Load() on startup, so we reinterpret IsLoaded() here to mean: is loaded, or possible to be loaded lazily. 
-        public static bool IsLoaded() => ActivePlugin.IsLoaded() || ActivePlugin.isSupported;
+        public static bool IsLoaded() => ActivePlugin.IsLoaded();
 
         /// <summary>
         /// Get the list of available upscaler plugins, as a read-only list.