Playing Halo for the first time ever, only about 2hrs and got a slight headache and motion sickness…after the warthog. Got the same thing driving in battlefront. Weirdly I don’t when I play driving games, I think it’s the free view aspect of it, you can go a different direction to the way you are looking at.
Do you wear glasses with a strong correction? The FOV/warping at the peripheral can cause issues with people with strong corrections.