https://wccftech.com/ultrawide-larger-stash-size-fallout-76/

As with any online game still in beta, Fallout 76 has its own share of issues that have been reported by the community. With the final Fallout 76 beta test due tomorrow from 2 PM Eastern Time to 8 PM Eastern Time, the official Bethesda Game Studios Reddit account posted a thread addressing the studio’s stance on some of the most prominent problems.

The good news is that the developers have confirmed official Ultrawide support and increased stash size (one of the biggest complaints) will make it into the game. However, the FOV (Field of View) slider won’t, and yesterday’s update locked the ability to manually edit it via the game’s .ini file on PC.