Site recovery UI does not support ADFS/Azure AD (like Entra ID) for non-VMC environments.
This is working as designed. Currently, SRM does not support ADFS/Azure two-factor authentication or configuring SRM with external OAuth2/Identity Providers (IDPs).
NOTE: Azure Multi-Factor Authentication (MFA) is a security feature that adds an extra layer of protection to your Azure account by requiring more than one verification method for sign-in. It helps prevent unauthorized access, even if your password is compromised. MFA is a core component of a strong identity and access management (IAM) policy.
This feature is being considered to be implemented on a future VLSR release.