As a 365 admin, I’m not aware of a single policy to track or manage your device through the authenticator app. Past that though, you should have the option while setting up to click that you want to use a different app than authenticator. The vast majority of businesses won’t lock you down to the single app, so check to see if that option is there. I couldn’t care less which 2fa app any of my clients are using so long as it’s a reputable one. And your company can’t get mad at you for using a different app if they left the option available.