FWIW - and I'm not a power user - after much research and hemming and hawing, I decided on the Asus Pro Art PA278QV 27" 1440p screen, to go with our new Mac Mini M1.
The screen is great, but the monitor stand is a work of art. Solid, tilt / swivel / height. If you're coming from a Retina laptop screen, this one will be a nice match. Got ours at
NewEgg.ca ($449 Cdn, about $330 USD)
In my experience coming from a Retina MacBook Pro to my office non-Retina iMac, even adjusting for resolution, there was a qualitative shift that bugged me (fortunately with the pandemic I've managed to work from home for the past two years).
That's why I chose the Asus ProArt. It's resolution matches (in a non-retina way, but still UHD) the display resolution of my workhorse iMac 27" 5K. At some point I want to go back to a dual-monitor setup, and the ProArt will sit nicely alongside my iMac. We considered the ProArt purchase a test-run for that scenario. It matches so well with the Mac Mini M1, though, I'll probably just get another one and leave the Mini as it is.