This is a good and accurate article about monitors.

To sum things up, I don’t see a problem with 24” 4k displays or even 27” displays. I use both with macOS and love both, never had any problems. Of course, 5k or 6k would be better, but those go in the “nice to have” category. 4k is a must-have, an absolute minimum for anyone working with text.

Agreed. If you don’t have at least a 4K display, and you work with text routinely, then you are just screwing yourself and your eyes. And who wants to be screwed in the eye?! No one, that’s who.

I’m always flummoxed by people who use absolutely shitty eye-destroying monitors to save $100 over five years. What a waste.