Chasecam issues
While I know Chasecam isn't necessary for VR play, for certain animations or pseudo cutscenes that play in some WADs and mods, it's a good thing to have.
Whenever Chasecam is active, the camera shakes up and down or front to back very fast, and while it doesn't affect me so much, I can see how a lot of people can get motion sick from that. It does seem to calm down for a few moments after pausing, but then it goes crazy again. Turning your head also seems to just be the same as moving your mouse: your whole view shifts turning left and right and the camera moves up or down when looking down or up. I certainly wouldn't know how to fix it, but it would be good to have Chasecam for viewing cutscenes in mods and WADs.
I think that this is a real big deal cuz when it pops out of nowhere even for 3 seconds in chasecam can give a lot of motion sickness. Even when I was never motion sick in VR I've experienced it.