Thank you for posting your query on Microsoft Q&A. As per current design Microsoft needs at least one of the available broker apps to be configured on the device for it to communicate (to request and receive token) with Azure AD.
Hence either Authenticator App or Company Portal app (Intune) must be configured to have a device registered in Azure AD.
If this is impacting your business then kindly post your feature request request on our feedback portal this would be later validated by our dev team.
Thanks,
Akshay Kaushik
Please "Accept the answer", "Upvote" and share your feedback (Yes/No) if the suggestion works as per your business need. This will help us and others in the community as well.