Is it possible to use Admob, without Firebase?
The "quick start" on the Admob page, leads to the firebase website with instructions on how te set up google services using Firebase to generate the google-services.json file and then adding Admob.
For now I disabled Firebase Analytics with in the app by adding <meta-data android:name="firebase_analytics_collection_deactivated" android:value="true" /> to the AndroidManifest file.