U3223QE, USB-C, flickering randomly, #3

I'm having the exact same issue. And it's not just one monitor. I actually have two that are showing the same symptoms:

- the flickering is random, dependent on the content of the screen. seem to get triggered by large areas of light/gray or general mid-tones. not when it's dark, and using dark mode on macOS kind of hides the problem for most part

- I've tested it with two laptops: M1 based MacBook Pro 14", and Intel MacBook Pro 13" (last intel gen). both create flicker. it's hard to determine what triggers it, but it sometimes shows up immediately, and sometimes it takes a while/requires the content of the screen to be such to trigger it. both of my monitors are exhibiting the same symptoms.

- for a brief period I used HDMI I wasn't seeing it, but that's moot because I bought these monitors specifically for the USB-C functionality

- one thing that temporarily removes the flickering is choosing a different monitor profile in display settings. It doesn't matter which one. generally, the one that is currently selected will flicker and any other will not. I say "temporary" because it is a temporary solution: the flicker will eventually come back, and then you have to switch profiles again to get it not to flicker. so, then the original profile that flickered becomes the one that removes the flicker, and so on. it's super weird

- honestly, I don't know if this is an apple issue with profiles, or just some weirdness exhibited by the monitor, but whatever the case is, it repeating over two monitors bought at different times makes it very suspicious of monitors, because it does the same thing with two different laptops.

It looks like I might have to declare it as a warranty issue. It kind of works at times, but is supper annoying when it pops up and is distracting for a not a cheap monitor I bought for very specific functionality that is causing issues.