User Profile

I am planning to build a VisionOS app and need to get access to the persona (avatar). I have not found any information regarding integration possibilities in the docs. Does anyone know if and how I can access the user's persona? Other applications like Zoom and Teams for VisionOS use the persona, so I think it is basically possible. Apparently (if it's not fake) there is also a chess game with integrated persona: https://www.youtube.com/watch?v=mMzK8C3t14I Any help is very welcome, thanks.