How do I use it on my VR??
Depends on what VR you got, You most like have a Quest 2 or 3... I have instructions on how to sideload it... PCVR should aslso work :>
Just follow the instructions when you press Download.
IF you still cannot figure it out I suggest watching a video oh How to play PCVR games or How to Sideload VR games from itch or something like that xP