In my previous apps, account creation wasn't a feature, so I relied solely on RevenueCat's SDK to determine subscriber status.
However, my new app incorporates an account system powered by Firebase Authentication. I plan to integrate the RevenueCat Firebase extension to facilitate this. My goal is to grant premium access to users consistently across Android, iOS, and web platforms.
Therefore, I'm wondering if Firebase Auth custom claims can serve as the sole mechanism for checking a user's subscription status. My concern is that if a user signs in with their premium app account but uses a different Apple ID or Gmail (not linked to the original purchase), the RevenueCat SDK might incorrectly return 'false' for their subscription status."
