I ran the commands you mentioned each in turn on a Windows 11 laptop, the only hit being sfc /scannow said it found errors and fixed them. After restarting the pc and running Updates again, it no longer finds Update for Windows Security platform - KB5007651 (Version 1.0.2109.27002).
What's going on? Some of my systems install this update without a hitch, some fail, and some never list it in installed updates search results.