I have a Samsung neo g9 57" which is like 1/2 an 8k monitor (or 2 4k monitors side-by-side) which is sweet since I use picture-by-picture mode to have my work computer on one side and my personal computer on the other side.

I have the SAMSUNG 49" Odyssey Neo G9 G95NA - but despite spending literally dozens of hours - I was never able to get text to work clearly on it - either Mac or PC - tried both the DisplayPort, HDMI - tried all the (many) HDMI cables I had at home, and a couple expensive Monoprice cables, firmware updates, monitor resets, every setting I could figure - no luck. Text is just ... fuzzy in a way that it isn't with any other monitor I've ever owned - kind of a deal breaker when I spend all day in tmux.