How to turn off game notifications in Windows 10

I upgraded to Windows 10 today. I'm kinda liking it but every time I launch a game, it pops up some stupid notification, like "Use this keyboard shortcut to take a screenshot", or "Use this combo to open the Game Bar".

How can I make Windows 10 stop pestering me with things I don't want to do when I launch games?

Starcraft 2 screen with Game Bar popup


Apparently, you can open the game bar, and then one of the settings inside the game bar is "Stop pestering me with pointless stuff". If you don't want the Game Bar, gotta go in the Game Bar.

"Show tips when I start a game", unchecked in the Settings