It could be an issue with the Graphic Card driver, try update your graphic card driver and also update Windows.
In case problem persist, try report it using the Feedback Hub app and also report it to the Dell support.
You may try uninstall the Graphic Card driver and see if the problem persist (just to test).
.Net bug in win11

In windows11, .Net application, buttons and text will blink and blur.
Strangely enough, such a bug only appears on dell laptops, not on other brands of computers.
The version of OS is 22000.318 .
Windows for business | Windows Client for IT Pros | User experience | Other
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Reza-Ameri 17,341 Reputation points Volunteer Moderator
2021-11-13T16:56:29.943+00:00 -
Limitless Technology 39,926 Reputation points
2021-11-16T08:34:18.11+00:00 Hi there,
I am not aware of this issue having been reported with Windows 11 currently . As it is only with dell computers , I suggest you to update your BIOS and drivers and see if these actions resolves the Issue.
Windows 11 known issues and notifications
https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-21h2If you think it is an Issue you can report it here
https://techcommunity.microsoft.com/t5/report-an-issue/bd-p/ReportanIssue---------------------------------------------------------------------------------------------------------------------------------------------------------
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