A quick one, the shortcut for Mac to close all your open tabs in VSCode is Command + K + W

My memory is so bad that I’ll remember is as: Command + (K)lose + (W)indows

If you want to close one tab at a time, you can do Command + W but you need to be careful, if you trigger it too much and go to town, the last one will close your whole VSCode.

Note: Command + W also works to close tabls in Chrome (but not the K+W combo)

So long, until I learn vim for life.