Why the shell app needs to use the location services? The App Store description indicates that “This app may use your location even when the app is not open”
https://github.com/ish-app/ish/issues/249
> You can now keep the app running in the background with the invocation cat /dev/location > /dev/null &
On Android it's not automatic or automated and the user has to do it by hand himself (for obvious reasons); but for a few specific apps it allows them to work the way they should without needing weird permissions to emulate
> UPDATE: We record significantly increased number of app killing on Samsung's Android Pie flavor. The hints show adaptive battery being much more eager than in stock Android.
> After 3 days any unused app will not be able to start from background (e.g. alarms will not work anymore). Imagine, you won't use your alarm clock for a the weekend +1 day and bang! no alarms any more and you miss work! We strongly suggest to turn off Adaptive battery and Put apps to sleep options per instructions below.