A cloud-based identity and access management service for securing user authentication and resource access
As per the documentation you have shared
Free plan has Primary Authentication methods set to Password which is the defaull primary authentication method in all plans.
On top of that, MS Authenticator, FIDO2/Passkeys are also available with some limitations.
So the list should be **Microsoft Authenticator passwordless, Microsoft Authenticator push notifications, Temporary Access Pass (TAP), Short Message Service (SMS) sign-in, QR code, Password
**That said, with Entra Free which comes with defaults of MFA whre authentication is available, its modtly enough with password as primary authentiucation. Incase password is not an available primary, you have to evalaute and enforec another. Not sure how this works in free plan or even if you can enfore another other with password being unavailable
Learn more here https://learn.microsoft.com/en-us/entra/identity/authentication/concept-mfa-licensing