As an example, FPS titles like Borderlands 3, Destiny 2, Rainbow Six Siege, and Apex Legends all feature an FOV slider.
FOV sliders have become pretty common in first-person shooters on consoles in the last few years, with many popular franchises adding them to the PS5 and Xbox Series X versions of games. The FOV slider present in Call of Duty: Warzone 2 can give some players an unfair advantage.