I would like to unlock my machine quicker after a bathroom break, without changing my normal password-length.
For example, a 3rd party lock app that would require only a 2 character password or similar ... to be used during short absences from my computer.
Does not need to stop anyone with the slightest amount of skill, just random nosy people.
Win+L would retain its functionality, but some other shortcut key (win+B or something) would allow for a less secure lockscreen.