You can play doing light in native VR. As far as I can recall you add OculusEnabled to the ini file. You do need good VR legs, I don’t even remember if I used Vorpx as it was years ago, but I played the native VR for about 40 hours.
Unfortunately I cannot advise on your question. I think in native I just kept my head very still for the videos.
It was Oculus only. I was never able to make it work on my G2.
Anyway VorpX is probably better in a lot of ways, including graphics (at least on a displayport VR headset). And I wouldn’t like to have compression, especially in this game.