Microsoft is set to integrate a "light version" of Authenticator into its Outlook mobile app for Android and iOS this month. This integration will allow users with Microsoft 365 business accounts to confirm multi-factor authentications within the Outlook app, eliminating the need for a separate Authenticator app in some cases. However, the Authenticator app will remain a standalone option.
This move is likely aimed at making the use of multi-factor authentication more convenient for users and encouraging wider adoption of this important security feature.
https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=122289