Actually, on our own AR devices, JSAR uses OpenXR to enable mixed rendering of web content and Unity scenes together. JSAR itself is a browser engine library, and it currently works in any AOSP + GLES3 environment (which should cover most devices except Vision Pro and Windows). However, I haven’t built a full browser app specifically for mainstream VR devices like the Meta Quest, as the project’s main focus right now is on implementing missing web standards.
I’ve also updated a detailed explanation about this issue—if you’re interested, you can read it here: https://m-creativelab.github.io/jsar-runtime/manual/quick-st...