Update- Issue Resolved by Updating Drivers.
Hello, I just bought this Dell U3223QE monitor. Hooked it up to my MacBook Pro 13 M1 and immediately started noticing some random appearing lines, horizontally or vertically, that last for a fraction of a second and disappear. They appear in intervals of one or two every few seconds. They look like something you'd imagine would happen if there is a power issue to the monitor. The lines are one part of the problem, but the other is that the monitor looks good for a couple of seconds, maybe a minute or two. And then starts glitching out. I can still see things on the display, but across the whole display area I see glitches appear. Most noticeable on colors that are not white or black. Especially grays. I tried switching from USB-C to USB-C cable to a DP to DP cable to USB-C dongle into MacBook Pro 13 M1. The issue persists. I've tried switching color profiles, sRGB, DCI P3, still the issue persists. Restarting the MacBook Pro 13 M1, updating the drivers for the U3223QE, installing the Dell Display and Peripheral software, etc etc, nothing helps. I've read that this U3223QE is supported for MacBooks, M1 as well. I've also done the U3223QE self-diagnostic thing and everything seems fine. The OS version is macOS Monterey 12.3.1. Now I installed the latest OS version macOS Ventura 13.0.1 and issue persists. Also tested with HDMI to USB-C, no fix. Do you have any idea what this could be? How to fix it?   [IMAGE][IMAGE][IMAGE]  
U3223QE, MacBook Pro 13 M1, lines issue