> 3. Configuring my preferred linux environment to work with 4k is either impossible or just super time consuming. I use i3 and it adds way more productivity to my workflow than "My fonts are almost imperceptively sharper" ever could

Happy i3 arch linux 4k monitor user here for over 2 years. I only set an appropriate Xft.dpi for my monitor size/resolution in ~/.Xresources once and that was it.

Can't imagine being easier than this tbh.