Is using Google Firebase an Amateur approach?

Hello, I have been using Google Firebase since 2018 in almost every project of mine.

I use auth, realtime, storage, firestore features. I used it for my python scripts, I used it for Flutter apps, react – js web apps, .net c# and so on.

My question is: is it easy and amateur approach to handle data?

Do I look unproffessional because of using it?

Is it good idea to use Firebase everytime?

I'd be happy especially seniors reply me. Thanks.