I built a sim racing setup slowly over time, and using a VR headset instead of a screen has been a game changer. It's actually fun again. Downside is that I don't think I can ever go back to racing on a regular screen anymore.

You could hobby with LÖVR: https://github.com/archibald-carrion/LOVR-VR-game-design

beat saber is the only game I play on it and it's incredible

If you got a beefy PC, flight simming is a killer app for VR. MSFS and DCS World are both great, as is VTOL VR.

I'm also kinda fond of WayVR if you like tinkering: https://github.com/wayvr-org/wayvr