A couple of QoL suggestions.
In the inventory menus and in-game, when playing in a 21:9 ratio it would be nice to have the option to bring all the HUD elements and inventory in to wear they would be if playing on a 16:9 display, whilst still retaining the entire 21:9 screen. This would be especially helpful in the inventory when looking between stored and equipped gear. What would also help this is to have the ability to be able to compare weapons with the gear you currently have equipped (by actually seeing the two gear cards side by side).
The other suggestion is only a little one. When holding up or down on the d-pad to scroll between the various options, it would be nice to have a little arrow either side of the little pop up to indicate that there are more options to scroll to ‘off the page’. It would be useful in the midst of combat to quickly know whether you are at the end of the pop up menu or not. Also, having the ability to rearrange the order these items show up in would be appreciated too.