I find those "ultra wide" monitors quite horrible.
More pixels is better, but if they're all in a single row you're just looking ad bar codes.
If you've got the width, but not the height you're just missing half the screen.
currently I have a dual monitor setup, both 1920 x 1200 pixels. One monitor in portrait which is great for everything text based: websites, programming, viewing datasheets and such, and the other in landscape, which is better for graphical stuff such as FreeCAD for mechanical and KiCad for making schematics and PCB's.
My next monitor will very likely be a 3840 *2160 with a pitch of > 0.2 mm.
Those very small pixels of these days are a marketing gimmick popularized by manufactures and their advertisements, but not very desirable for real-wold use, although I've heard that some people who do lot's of photo editing get some benefit from it. But I'm not sure if they've compared it with a bigger monitor with the same amount of pixels.
One of the cheapest monitors that would fit my wishes is the LG 43UN700-B. I've also been looking at the HP 43Z, but it does not have many inputs. The LG seems much better in this regard.
My current monitors have a pixel pitch of 0.27mm, which is a bit on the coarse side. the LG and other 108cm monitors do have a 0.24mm pitch which is may be an improvement. Somewhere around 0.2mm the pixels just become too small to be useful.