Here it is, the arrival of Xbox Cloud Gaming (Beta) has been announced! - Oculus Blog
Xbox Cloud Gaming (Beta) Is Here!
The Xbox Cloud Gaming (Beta) app is now accessible on Meta Quest. Users can now download the app directly from the Meta platform. For more detailed information, visit the source at Oculus Blog.
Source: https://www.meta.com/blog/quest/xbox-cloud-gaming-beta-launch/