I'm slightly confused about obtaining Google Authenticator backup codes.
I can find my Google Account backup codes at: https://myaccount.google.com/signinoptions/two-step-verification
But have no idea if those are the ones I should use to restore Google Authenticator and recover all attached accounts in case I lose my phone.
P.S. Feel free to suggest other services with better/enhanced security and easier (but secure nonetheless) backup procedure.