[Tepix]

No, Google Authenticator is not tied to a device. It's a standard (TOTP, RFC 6238) and you just need to use an app (perhaps not Google Authenticator, I use a different app myself) that will let you see the numerical code that you need to save somewhere.

[azinman2]

It’s tied to the device as in it won’t be part of your backup to a new phone.. you have to manually transfer it yourself which according to you is using another app!

So the likelihood of moving to a new phone without those codes transferred is very high. Not exactly an easy experience.