You know Google Authenticator is just an implementation of the TOTP open standard right? There are plenty of alternative apps that will give you the same number to key in...
Totally understandable GP wouldn't know that, from what I recall of logging in to a Google account when I did that at all often (a few years ago, but relatively recently) Google does its best to hide that.
(If you want it, mine's another recommendation for Authy.)
Yeah I did not know you could use any TOTP besides Google Auth but even that that's not an option that's presented to me anymore at the moment now that I'm checking.
The nice thing about TOTP is i can put it in my password manager which makes life a whole lot more convenient. W for open standards.
If you’re on a Mac, in safari you can just right click on the QR code and set it up in keychain, then you can just auto fill from safari, no need for a third party app.
You might want to keep at least your email decoupled from a particular Hardware+OS+Browser combo.
I was very pleased to discover that most of the KeePass/KDBX apps (e.g. KeePassXC) also support storing this data and generating the TOTP.
Authy included
Not if they flag you before, which is the same thing Twitter requests.