Tell me you haven't used PSVR2 without etc etc etc
FPS games in VR a far and away better than flat screen gaming. It's not just the perspective, but the freedom to point your gun in any direction, at any angle and away from your body. Add the adaptive triggers of the PSVR2, i know they sound like memes but they really do make a difference, and, for me at least, I can't go back to flat screen FPS. The experience is so much better in VR that the flat screen equivalent is not like playing on retard mode.
I'm lucky though as I've never experienced motion sickness IRL or in VR. The worst I get is when I first load up Pavlov, when I move while stood still I get light-headed and my legs go a bit jellyfied. I just have to march on the spot for 15 seconds and the feeling goes, then I'm free to play.