Push Notification for un-ejected project

Please provide the following:

  1. SDK Version: 37.0.0
  2. Platforms(Android/iOS/web/all): Android/iOS

I am running an expo app and testing out push notification. When I test it out thru an expo client app on my android phone, it works fine although I see Expo in the notification.

Expo document says I need to add google-service.json to my project to use FCM. but I’m a bit confused if this is only for ejected projects or it applies to plain expo apps as well.

So when I build an apk, should I need to separately setup FCM for push notification? or Does expo handles it all from itself?