Since using Quick Look exits you from both your app and Immersive Space. Is there a way to view immersive images within Immersive Space?
View Immsersive/Stereoscopic Images in Immersive Space
Hello! visionOS 26 introduces ImagePresentationComponent, which enables you to present 2D photos, spatial photos, and spatial scenes in windowed and immersive spaces with RealityKit.
Check out the Immersive media section of What's new in RealityKit from WWDC25 for more information. There's also a new Presenting images in RealityKit sample code project to help you get started.