i long for a “Eizo” like quality monitor, 15 or 17 inch, with “retina” ppi count.

am i the only one who thinks that this would make sense?

There are a few displays like that, although quality will differ on your criteria of course. Many of them are marketed as "portable monitors", some specced for gaming, others for artists, some built to be cheap.

ASUS ProArt PA169CDV, UPerfect 184T01, Lipa AX-60 (and AX-60T), UPerfect UFilm A17, UPerfect UGame J5, and two portable screens by Verbatim, just to name a few.

Hey, I think that's a great idea, too. 4K panels on phones (tiny!) exist for some absurd reason. But somehow there are no 22" 4K monitors. I think they probably don't sell well. Probably the same reason why all monitors are 16:9.