I've heard that Big Sur solves the problem not being able to run the native resolution of the monitor (2K QHD 5120 x 1440), can anyone confirm this? I'm a bit hesitant to buy the Mac Mini before this is clarified.
Not same monitor but my LG 48 CX used as a monitor was MUCH better with Big Sur than 10.15. Text is crisper, overall display resolution appears better matched than even when I was trying to use SetResX