Tested on Oculus Quest and the gameplay works well however stuff like searching songs on Quest doesn't work and when Recording using the built-in screen recorder it's out of sync even though gameplay is in sync to the one that played it also another thing that would be nice is seeing the score and combo without needing to turn to see it.
Viewing post in Rhythm Taichi (with VR & XR support) comments
Another thing i noticed is that when downloading songs it does that thing where it only shows a bit of the screen while everything else is black until a song finishes downloading however this isn't a problem for me and when i did the beastsaber download (downloaded DADDY and My songs know what you did in the dark) it doesn't do that