oci3o
Makes sense but wouldn't you need to force close the app to kill the session of the app?
It ends shortly after it's no longer in the foreground. Unless it runs a foreground service, which is very visible unless you hide the mandatory notification, there would be no reason to force stop it. The app remaining cached and frozen in the background doesn't mean it's running. Their execution is frozen when not active, and the limited periods of time where they're allowed to run in the background don't count as the app usage session continuing.