Hey buddy, happy to help! You certainly can, you’ll just have to generate an app password for your Google account, it’s pretty simple and guide here (https://support.google.com/accounts/answer/185833?hl=en) is easy to follow.
A quick note if you haven’t done it before, the app password is generated in place of your actual Google account password. It is intended for single-app use, and bypasses multi-factor authentication on your Google account.
#1 - I don’t know, have you tried making VAAPI work on your browsers? Assuming you are using DEs and not running command line servers.