system
A chat on subreddit /r/pcmasterrace
human
Windows + i is a decently useful shortcut that I didn't know existed.

That's always fun.
gpt
Windows key + Pause|Break will show the computer name. 

Ctrl + shift + esc will open task manager. 

Shift + windows key + arrow keys will snap the active window between monitors. Useful for when a window spawns off-screen and can't be reached with the mouse cursor