neowin[.]net/news/windows-10-kb5001716-install-fails-with-0x80070643-error-but-a-fix-seemingly-exists/
I reset / restored a Win10 VM to its state immediately after February's Update Tuesday patches, checked for updates in Windows Update, and KB5001716 was installed with no issues. Checking for updates again, KB5001716 showed up, automatically tried to install, and failed -- got the same results every time I clicked to check for updates. Apparently whatever code is supposed to tell this update it's already been installed and should no longer be offered is broken.