Wrong. The smaller your the monitor the smaller the fov needs to be. In Planet Coaster, however, the fov is way too low.
That isn't necessarily true. In an FPS game it is because the people would be too small to see when you are firing at them (that is all) because of course you are trying to show more on the screen. For a game like this where it is just to visually look around and you are at eye level in a massive world the FOV at 120 would not be an issue on a 20" monitor because you are looking around to feel embraced by the world you are in.
Different games require different FOV. The one in PC is awful at moment but since I don't ride the rides because of this or bother to look around because I am not playing it isn't an issue that is on my list at this time.