In realtime database I have exactly 448101 users that authenticated by different providers. Is there any easy way to filter how many users sign-up with facebook, twitter, google or anonymous-login? I believe this feature should be in the analytics section of firebase console.
Thanks
There is no such feature in the Firebase Console at the moment. But it sounds reasonable, so I suggest you file a feature request.
In the meantime: since you say you have the users in the database, you might be able to derive the data from there, or at least start tracking it there.