Yes — on Google Play
Microsoft Authenticator has a Google Play listing.
App Store
On Google Play
Is Microsoft Authenticator on Android?
About Microsoft Authenticator
Use Microsoft Authenticator for easy, secure sign-ins for all your online accounts using multi-factor authentication, passwordless, or password autofill. You also have additional account management options for your Microsoft personal, work or school accounts. Getting started with multi-factor authentication Multi fa…
Microsoft Authenticator is listed on both the App Store and Google Play from Microsoft Corporation, so you can install it on Android phones and tablets. The Play Store listing shows 10,000,000+ installs.