Microsoft has been fixing Windows 11's annoying white flash bug in File Explorer for over 2 years

The latest Windows 11 preview build mentions a fix for File Explorer that should stop it from flash banging you in dark mode.
Windows Latest

Microsoft is giving Windows 11 File Explorer a speed boost, dark mode fix, and reducing explorer.exe crashes

Microsoft now says it's preparing a big update for File Explorer that would allow it to run faster, address 'white flashes,' ...
ZDNet

Windows 11 update breaks File Explorer - among other glitches

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Neowin

Microsoft finally fixes File Explorer flashes in new Windows 11 builds

A pair of new Windows 11 preview builds are here for Dev and Beta Channel users with fixes for File Explorer flashes and more. Microsoft has released a fresh pair of new Windows 11 preview builds for ...
Windows Report

Windows 11 KB5083631 Release Preview Speeds Up File Explorer, Adds Xbox Mode & More

Windows 11 Release Preview KB5083631 adds Xbox mode, makes File Explorer snappier, improves input, and haptic feedback.
BGR

Microsoft Is Finally Doing Something About Windows 11's Slow File Explorer

For years, users have been complaining about how slow and sluggish File Explorer feels on Windows 11. Now, with Windows 10 having officially reached end of support, many are finding themselves facing ...