FOV disabled - why?

On Series X you cannot change your FOV if you play at 120 fps but you can if you play at 60fps. Why is this and will this be a thing in infinite?
Why can’t I adjust my FOV when playing at 120fps when other games allow it?

Hey OP, I can’t remember the reasoning behind it but it’s an intentional feature:
https://support.halowaypoint.com/hc/en-us/articles/360052059432

Yeah I saw not long after posting that it was intentional, it sucks.

Hope it doesn’t carry across to Halo infinite.