Many adjust FOV so they don't feel sick in fps games. The occasional fps game has given me a sick feeling or a headache and from what I read the FOV setting is why. Adjust it and sickness can go away. Something about a certain FOV causes the brain to sense too much of an imbalance in the movement on the screen with the non-movement outside the screen. And this makes some sick or gives them a headache etc. I looked into this quite a bit many years ago.
Funny to hear Cheapie already getting deep into pcgaming with his "hacks." I'm back into pcgaming too the past year, but haven't got back into the hacks much. As I get older just have less tolerance for spending time on that sht. Also seems to take longer for me to look that sht up nowadays.