Does your TV screen flicker when using PS5? The problem might be caused by the 4K Transfer rate in your console settings. Here’s an easy fix to try:
PS5 Settings > Screen and Video > Video Output > 4K Video Transfer Rate
Here you can adjust the transfer rate of 4K Video Output. If your screen flickers, try selecting a value of -1 or -2 to limit the transfer rate. If this doesn’t fix it, the issue might be with your HDMI cable (make sure you use HDMI 2.1 or newer) or it’s with your TV. You can also try lowering the video output resolution (found in the same PS5 Settings Menu) to see if the issue persists in lower resolutions.