I don't own this game, but it appears that an old FOV mod for the original SRTT (https://www.gog.com/forum/saints_row_series/sr3_fov_fix) still works in this game. Is this true?
(Source: old.reddit.com/r/SaintsRow/comments/goqcev/if_you_want_higher_fov_the_old_mod_still_works/)