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.
OS X Daily

Why WindowServer Uses High CPU & Memory on MacOS Tahoe and How to Fix It

If you have felt your Mac is curiously sluggish, you may have opened Activity Monitor to investigate at some point and ...