Sometimes I feel like in a diferent world than everyone else. I'm really happy with my 1080p devices, and upgrading them to higher resolution would feel like a waste of resources to me (I don't have especially bad eye sight, but on 1080p things are already small enough to my taste)
(Of course I'm talking only about computer monitor, for very big TV screens or for screens that I have 10cm from my nose it's a different story)
WFH have an old Apple 20" screen as my only display. 1680 x 1050. With multiple workspaces and a tiling window manager, I find it completely usable. At the office I had two screens, but don't really miss it.
Just got (as in, 2-3 hours ago) a new 4k display (32") to add to my 2x22" setup. My eyes are already happier. I'm using windows with scale set to 150% (for the 4k display) and 100% for the other 2.
For me personally, it is only really noticeable when I shift my eyes from one of the middle 4K screens to the 1080p screen.
I am a little picky about fonts and their display though. The higher resolution the screen, the better. I have my Emacs configuration using a bunch of different fonts and sizes/weights/etc for my Org-mode, Terraform, TypeScript, and other editing. For example, when a todo item is put into "in progress" the heading is slightly larger and bolder, and when that item is complete, marking it "done" changes the text to italic, extra-light, and grey to reduce its visibility.
Time spent messing around with fonts is definitely an expression of ADHD and active procrastination, but I do get a pleasing effect from it! :)
(Of course I'm talking only about computer monitor, for very big TV screens or for screens that I have 10cm from my nose it's a different story)