Try update Windows and check devices manufacturer website and if there is any new firmware or BIOS update, then update them.
Open start and search for feedback and open the Feedback Hub app and report this issue.
Verify if this is being reproduced in the Clean Boot?
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
Sleep mode wakes up the screen, the screen will flicker, and then the lock screen wallpaper will be displayed normally

The problem: The laptop goes into sleep mode, which involves clicking on the lock of the head or closing the cover of the laptop, waking up the screen, and then displaying the lock wallpaper properly after blinking.
Description: The flashing color is the theme color, and the flashing time is short. The problems of the computer a lot, I haven't noticed before, details and record the screen to see:
https://www.zhihu.com/question/370866485?ivk_sa=1024320u
The laptop models with this problem are not the same, including Lenovo, Redmi, Huawei and so on. I would like to ask whether this is a normal phenomenon or an unrepaired problem. I did not find this problem until I upgraded to Win11 through the Windows Experience Plan last week, and I thought it was the BU of Win11. But yesterday back to Win10 just found that the problem still exists, hope the official can pay attention to this problem and reply, I do not think this is normal phenomenon.
Windows for business | Windows Client for IT Pros | User experience | Other
2 answers
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Reza-Ameri 17,341 Reputation points Volunteer Moderator
2021-07-11T17:17:24.183+00:00 -
Jenny Feng 14,246 Reputation points
2021-07-12T02:12:23.237+00:00 @chen chen
Hi,
Screen flickering in Windows 10 is usually caused by incompatible apps or display drivers. To determine whether an app or driver is causing the problem, check to see if Task Manager flickers. Then, based on that information, you'll need to either uninstall the app or update the display driver.I would suggest you to go through below article and refer the suggestions from the article and check if it helps.
http://windows.microsoft.com/en-us/windows-10/troubleshoot-screen-flickeringHope above information can help you.
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