I was shopping for new external monitors, and I managed to get an amazing discount / deal on a brand new Dell Ultrasharp display, only to be warned not to use it with Mac’s as it has terrible scaling issues.
I have the same problems with my current Samsung 4K display as the letters are small as hell, and I basically have to change the resolution in Mac OS.
So why are ARM Mac’s terrible with external monitors?
Maybe the M1-2 are base processor with limited video processing on the base chip! Face the fact a base model Mac won't drive HDR displays! The most 1440 display and only ONE display!