I am developing an immersive visionOS app based on RealityKit and SwiftUI.
This app has ModelEntities that have a PerspectiveCamera entity as child.
I want to display the camera view in a 2D window in visionOS.

I am creating the camera, and add it to the entity with

let cameraEntity = PerspectiveCamera()
cameraEntity.camera.far = 10000
cameraEntity.camera.fieldOfViewInDegrees = 60
cameraEntity.camera.near = 0.01

entity.addChild(cameraEntity)

There are some post on SO, like this one, that apparently show such camera views as part of an arView. However my app is not AR. The immersive view is programmatically generated.

My question is:
How can I show the camera view in a SwiftUI 2D window?