Just in case it helps others (correct me if I’m wrong please):
android:label (Android app name) comes from
projectfolder\android\app\src\main\res\values\strings.xml
applicationId and versionName (App Id & Version) comes from
projectfolder\android\app\build.gradle
At least, that’s the way it works for me.
Don’t know if Wappler have handled that in the past.