> I do worry modern Oauth2/MFA is going to kill the free OS.
As long as you can run a modern browser, how so? FIDO2 is pretty well supported everywhere these days, though of course you don't get a platform authenticator like macOS keychain or Windows Hello.
App integration. For Web bases access, in the browser fine. But to e.g. fetch mail via IMAP, but oath a token, that's more complicated. That's what the python code I'm running does.
As long as you can run a modern browser, how so? FIDO2 is pretty well supported everywhere these days, though of course you don't get a platform authenticator like macOS keychain or Windows Hello.