VR's problem, in my opinion, is that I can get immersed (fully, exactly as the author describes it) in a 2D game just fine - the lack of stereo vision or head-tracking or motion controls is no more an impediment to my immersion than the limited binocular overlap or peripheral vision or lag in a VR headset. And 2D is a heck of a lot cheaper and more convenient (and less nauseating).
That's not to say VR can never be successful, but I think it needs to offer something more compelling than just immersion. Exercise or AR might be viable routes.

https://news.ycombinator.com/item?id=47517774#:~:text=VR%27s%20problem%2C%20in,be%20viable%20routes.