Proton is a service that provides the ability to store 2FA secrets in order to get 2FA codes.
Secrets can be added manually or imported from Google Authenticator.
Quick access to codes when using a computer or laptop
Makes multi-accounting easier
The ability to "pin" a tab with a code in the anti-detect
A copy of the secrets if the phone is lost
Import from Google Auth (otpauth-migration)
This is a permanent link to get the code without authorization.
Click here to watch a video explanation