> Adaptive Battery, in a nutshell, is about figuring out which apps you use frequently and keeping those apps in memory, while the apps you don’t use often are purged once you’re finished with them. Put another way, Android Pie can adapt to your usage patterns so that it only spends battery power on the apps Adaptive Battery thinks you’ll need. https://venturebeat.com/2018/08/28/how-android-pies-adaptive...

I don't know. Wouldn't be easier to simply close the app when a user closes it ?