In my experience it's a little hit and miss with macOS. You need a monitor that is specifically listed as being supported by macOS. If not you get rather strange results. I had a Dell monitor that, under macOS only, would sometimes freak out and flicker if you had to many electron apps open.
In some sense it's reasonable that you need a supported monitor, it's just strange that Linux can support all these monitors, but macOS can't?
Adjust it to what? Making a 4K monitor look like 1440p (or a non-1080p or 4K desktop) ends up with a non-integer scale on macOS AFAIK. They also completely tore out subpixel font rendering for low DPI displays.
Perhaps try a 5k/27" at 150%, or look for visual acuity correction :)
FWIW, I could see jagged edges on 4k at 24" without subpixel rendering, 27" is worse. Yes, even 4k at 32" is passable with MacOS, but Linux looks better (to the point that 4k at 43" has comparable or slightly better text quality to 4k at 32" for a Mac).
I am trying to get a 55" 8k TV to work well with my setup, which might be a bit too big (but same width as the newly announced 6k 52" monitor by Dell), but it's the first next option after prohibitively expensive 32" options.
In my experience it's a little hit and miss with macOS. You need a monitor that is specifically listed as being supported by macOS. If not you get rather strange results. I had a Dell monitor that, under macOS only, would sometimes freak out and flicker if you had to many electron apps open.
In some sense it's reasonable that you need a supported monitor, it's just strange that Linux can support all these monitors, but macOS can't?
Adjust it to what? Making a 4K monitor look like 1440p (or a non-1080p or 4K desktop) ends up with a non-integer scale on macOS AFAIK. They also completely tore out subpixel font rendering for low DPI displays.
I use a 4k/27" display and it's crisp as it gets at 125%.
Perhaps try a 5k/27" at 150%, or look for visual acuity correction :)
FWIW, I could see jagged edges on 4k at 24" without subpixel rendering, 27" is worse. Yes, even 4k at 32" is passable with MacOS, but Linux looks better (to the point that 4k at 43" has comparable or slightly better text quality to 4k at 32" for a Mac).
I am trying to get a 55" 8k TV to work well with my setup, which might be a bit too big (but same width as the newly announced 6k 52" monitor by Dell), but it's the first next option after prohibitively expensive 32" options.