By default a normal user can abort the shutdown. They could also configure group policy to prevent shutdown permissions which also prevents aborting a shutdown.

The GPO is Computer Configuration > Windows Settings > Security Settings > Local Policies > User Rights Assignment > Shut down the system.

shutdown.exe -a should take care of situations like that. It’s not an excuse for taking away your options on the UI though.

Mint is my go to suggestion for new people switching over.

That is terrifyingly true. Wired cameras all the way.