My Win 10 system monitor keeps blinking. It seems similar to this: https://social.technet.microsoft.com/Forums/en-US/d646ec6c-56e1-4154-8101-b527432748be/my-screen-keeps-blinking?forum=win10itprogeneral
I did not make any changes myself, but the system recently installed the following:
1. Microsoft Edge WebView2 Runtime 89.0.774.54
2. Mozilla Firefox 86.0.1
3. Microsoft 365 -en -us 16.0.13801.20294
4. Microsoft Edge 89.0.774.50
(the WebView2 Runtime was probably because of me looking for system updates to fix the blinking).
The blinking starts intermittently, but once it starts, it is very annoying and I cannot use the computer. At first, it only flashed when it showed the desktop pictures (no other apps running). I cycled through the choices in Personalize -> Background. That seemed to stop the blinking.
It now blinks primarily while using Microsoft Edge browser and also Google Chrome browser. (possibly when they are maximized). Mozilla Firefox works okay. The monitor seems to work correctly when looking at control panel stuff (without starting browsers)