The same thing is happening to me. A few days ago, suddenly, when I started DCS in VR the options menu appeared below my point of view. I tried deleting the DCS folder in the Saved Games folder but it still shifts the view.
Earlier when you pressed the center view key (NP5) the view was in its centered position. Now however it only focuses for a short moment and then returns to its original position completely displaced.
In my case I use a Samsung Odyssey + HDM
I've tried repairing the files with the repair option, but nothing changes.
BTW, making some efforts I manage to load some plane and, in the same way, I find myself floating over the cabin and I can't focus my eyes. As in the case of the hangar, the view is centered a brief instant but returns to its displaced position.