What it is

Task killer app in EMUI 9+ (Android 9+).

Task killer apps tend to do more harm than help as they clear cached RAM for no good reason, removing the battery and time savings involved in caching. In addition to the obvious issues with background functionality like notifications. However, system may start lagging a little bit (you will notice it while scrolling and on some animations, for example scrolling installed apps), battery consumption will become slightly higher and battery stats will disappear soon. At the same time, logcat will be full of errors like: PowerKit: PG Server is not found. calling pid xxxx.

Commands

adb shell pm uninstall --user 0 com.huawei.powergenie

To put it back:

adb shell cmd package install-existing com.huawei.powergenie

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.