Btw: there is also the app usage statistics that every Android collects and which the user can see by dialing *#* #INFO#*#* in the phone app.
Every app with android.permission.PACKAGE_USAGE_STATS can read that.
"Google Play (Protect) Services", e.g. has this permission and may presumably transmit these stats to google
#privacy #malware #smartphones #Android #IronSource #AppCloud