I’m using bitwarden, so I’ll just copy the 2fa installation link, then pasted it into the authenticator key field in bitwarden and done. You’re going to need to have paid bitwarden subscription or self-hosted vaultwarden server in order to use bitwarden as 2FA client though.
Note that your 2FA installation link contains your 2FA secret key, so don’t save it anywhere else but your password manager.