[2023] wsl update wedges x11 apps

x11 linux apps wedged after WSL update 2.0.9.0

• PC rebooted overnight; found it had installed WSL 2.0.9.0

• linux x11 apps unusable; all seem to draw trash on screen in response to mouse events.
  • writeup here: linux-x11-appws-wedged-after-wsl-update-2090
  • 30sec youtube video here: windows11: WSL 16nov23 update breaks x11 apps

• can see update history:
  • Control Panel|Programs|Programs and Features|(sort on Installed On)
  • Settings|Windows Update|Update History (windows updates only - not sortable by date afaict)

• force WSL vm to shutdown + restart

  PS C:\Users\Rcony> wsl --shutdown
  PS C:\Users\Rcony> wsl --user roland
  

  Note: presumably wsl VM state is preserved across reboot, since rebooting PC had no effect here.