Authenticator key (TOTP) storage and use
Each website that supports Time-based One-time Password (TOTP) or Two-factor Authentication (2FA) with an "Authenticator" handles configuration slightly differently. You will need to start the setup from each individual website or service that you are accessing (e.g. google.com, github.com). The option to configure this will commonly be found under the "Security" options of your account.