The last Fallout 76 beta update implemented a lock on FOV changes. There was never an FOV slider in-game – you had to make tweaks to the ini file in order to make that particular tweak – and now Bethesda says you shouldn’t expect any official option to adjust your field of view.
“We haven’t supported FOV sliders in our previous games as it is known to break a lot of animations and causes a lot of clipping to occur onscreen. You do have the option to zoom out in third person on PC by holding View and moving the mousewheel, but we won’t be able to have it for first person view.”
That comes via an official announcement from Bethesda on Reddit. What that statement doesn’t address is whether we’ll have the option to unofficially change FOV, like in the early stages of the beta. Locking the ini file seems to have been an effort to implement a hard fps cap, since impromptu speed hacks result when players are running at high frame rates. If FOV changes merely result in some visual glitches, hopefully we’ll be able take our chances with manual adjustments, at least.
This doesn’t mean you’ve got any reason to worry about ultrawide support – at least not if you don’t mind waiting. Bethesda says 21:9 support will come, but not on the Fallout 76 release date. “We will support 21:9 post launch,” and “we’ll be sure to post our patch notes that let you know when to expect it.”