In visionOS 2, Safari on Apple Vision Pro now natively supports WebXR. - UploadVR
With visionOS 2, Safari On Apple Vision Pro Supports WebXR By Default
WebXR is now enabled by default in Safari with the release of visionOS 2, simplifying access to immersive web content on Apple Vision Pro. Previously, users had to manually enable WebXR in Safari's advanced settings on visionOS 1. This update, announced at WWDC24, allows WebXR apps to be used seamlessly like any other web app without installation or updates. However, WebXR on Vision Pro still doesn't support augmented reality modules, limiting its use to virtual reality. For more details, visit the source at UploadVR.
Source: https://www.uploadvr.com/visionos-2-apple-vision-pro-webxr/