For the benefit of the other three Linux users who are using this site, I found a cheat-sheet for VS Code keyboard combinations here:
It looks like this.
You can also access this chart from within VS Code by pressing CTRL+K, CTRL+S.
So now when Rick tells you some special hotkey combo that works in Windows but not in Linux, you can find the right combo and keep working on your game.
I think the coolest thing about this is that it opens a searchable tab in the editor so you can click back to it easily without having to close and open it again and again.