Reason: app-debug file will have all the debugging tools installed in that apk which are used for debugging in Android Studio, and you even notice that the app size is also high than the usual. Solution: you have to build a signed apk or just build an apk file for that. Go to build menu > build bundles / apk, and then build a apk.
There Is An Alternative: MicroG. All that said, there's an alternative to Google Play Services: a project called microG. This is designed to mimic everything Google Play Services does but it's completely open source. It's comprised of five key components that are meant to replace the core tools found in Play Services.
vgnV.