I believe VR has a niche in cockpit games. Racing, fight sims, spaceships, etc.
A VR headset is much cheaper and a much better experience than 3 (higher end) monitors.
I’m not sure if there’s any other genres where it will stick. There seems to be a place for narrative experiences, 1:1 hand tracking, and social experiences that games currently don’t do well. Also the potential for really good horror.
Doom seems to be the better way to do retro FPS. Make a completely new and original experience that feels like the original did when it came out.