Ability to add non-SMS non-Apple 2FA to an Apple ID?

I would like to add non-SMS, non-Apple multi-factor authentication to my Apple ID. I'm most interested in using a "code generator"-type [Time-based One-Time Password (TOTP)](https://en.wikipedia.org/wiki/Time-based_One-time_Password_algorithm) based on [RFC 6238](https://www.rfc-editor.org/rfc/rfc6238) implemented by client apps such as: - Google Authenticator - Microsoft Authenticator - Yubico Authenticator - Authy - 1Password - LastPass - etc. I do not see any such option. Is this type of authentication available for Apple ID? I would also be interested in adding YubiKey or other similar hardware "security keys". Or any other non-SMS, non-Apple multi-factor solutions. --- Note: I *am* able to add Apple's proprietary ["two-factor authentication for Apple ID"](https://support.apple.com/en-us/HT204915) integrated within iOS and macOS as an alternative to SMS-based ["two-step verification"](https://support.apple.com/en-us/HT204152) . This question is asking instead for a 3rd-party-compatible two-factor mechanism that **does not involve using an Apple device signed in to iCloud**. --- Related: - [Does TOTP in 1Password work with Apple ID? ](https://discussions.agilebits.com/discussion/41950/does-totp-in-1password-work-with-apple-id) - [Developer Apple ID’s to Require Two-Factor Authentication](https://mjtsai.com/blog/2019/02/14/developer-apple-ids-to-require-two-factor-authentication/)