Account Switcher Google Apps by Anshul Ahuja

Use Alt + <num> key to switch between google accounts for various google apps like Gmail, Play music, Google Drive etc
This extension is for people using multiple Google accounts in their browser. It often becomes a hassle switching between the different accounts for various Google apps like Gmail, Google Docs, Google Play Music, Google Drive, Classroom, Meet etc. This extension gives you the ability to switch across accounts seamlessly using keyboard shortcuts in Chrome.
So the extension makes use of that numbering.

To switch to say account number 2, you have to press Alt + 2 once you have already opened any of the supported google apps mentioned above.

Say you have gmail account 0 open, you can press Alt+2 to open the gmail account associated with account 2

Open sourced: https://github.com/anshulahuja98/account-switcher

************* In case of any issues with getting the shortcut keys to work ******************
1. First try reinstalling the extension
2. Otherwise, open chrome://extensions/shortcuts on your browser and see if the shortcuts have been set or not. If they are not, you can set the shortcuts there.

You can also customise the key combinations for the shortcuts on chrome://extensions/shortcuts

Disclaimer: This extension is NOT affiliated to or endorsed by Google in any form.