ok thanks, so if my mac mini 2018 can run up to 5k, I will not likely see a 30" 5k?No.
4k 24''
5k 27''
6k 32''
This gives you a pretty uniform density around 215 ppi.
Or if I do it'll be more like 170PPI and use scaling, but possibly still much clearer than the cinema display.
I read somewhere that at 24" from the screen your eyes can't see the pixels at 150PPI upwards, so 170-180ppi looks clear at that distance. The BenQ 32" at 139PPI still has visible pixels.
Just really how the Mac OS copes with scaling at 170PPI.