Blurr shader material is not working in vision os metal build?

Hi, I am developing a game in unity vision os using mixed reality feature. I am using app mode in Metal Rendering and Compositor service. but in this mode Blurr shader material is not showing blurr effect on glass ?

There’s no way to create a blur effect (that affects real-world imagery from the camera) in Metal mode, because Apple doesn’t provide access to the passthrough camera as a texture. The PolySpatial Background Blur node is only available in RealityKit because Apple provides a special node in their MaterialX support for that API. You can try suggesting to Apple that they provide a more general way to access the camera feed via their Feedback Assistant.