3 ms·

I just discovered the same dreadful thing with 27" 4K monitors, and found this site which explains what Macs are doing: https://bjango.com/articles/macexternal

• eMSF 5y ago
  I have a ~110 PPI monitor (the currently ever so popular 2560×1440 at 27"), and the first thing I'd change about this would be to have it be around 90-95 PPI like all the monitors I've had since the 90s. There's not a single website I use regularly that I wouldn't have zoomed in just a little bit because all the text is just a tiny bit too small to comfortably read (I spend far too much time in front of a monitor to have it any closer to me). The smaller pixel pitch in turn seems to offer no added value at all. (At home I have my old 1920×1200/24" display as a secondary, and all the default-sized content just seem to agree better with that combo.) I'd gladly take a monitor like this at 2× the resolution of course (so 5K), but again, if I could choose, not at 27" but at 30".