Wow, this brought back memories and I feel old.

I don't know, way back in the internet 1.0 days.... my child brain hung out with some other kids of similar age on chat channels. Time zones fucking boggled my mind at the time, and I tried to sell some other people on this shit so we could always meet up at the same time to chat.

TL;DR - I "bought into" the marketting as a kid... I always did like watches, tried to convince some internet buddies to use the shit. Later in life, understood how timezones worked.

I forget the key combo....

alt + PrtScrn

or

ctrl + PrtScreen

Open up your image app, paste from clipboard. file - save as.... bingo, "built in screen shot".

one of the shortcuts does "current active window" and one does the whole display.