I have a 3440x1440 (21:9) and it doesn't look quite right with your highest supported resolution. Surely theres other players with high res monitors or even multi monitors.

Could you provide a screenshot?  It's hard to picture what "not quite right" is.

Its just the resolution aint crisp clear, and also the loading screen icon in the bottom corner cant be all read. I don't want to miss out on information that cant be seen on the sides of the screen.

 

Its just general wrong resolution problems everybody has them if you put in the wrong one:)

Could you provide a screenshot?  It's hard to picture what "not quite right" is.

At (seemingly) anything above 1920x1080 loads of the textures get scaled up to double(?) size, which looks pretty bad, and some bits of the UI get cut off - there are numerous threads in the bugs forum that describe the various issues in more detail, so it doesn't really need to be covered here.