Work Manager in Android

Running tasks in the background consumes a device’s limited resources, like RAM and battery. This might result in a bad user experience. For example, background tasks may degrade the battery life of the device or the user may experience poor device performance at times such as watching a video, playing a game, using the camera.

To improve battery performance android has release few resources in earlier release like DOze mode, app standby, limiting location access and several other things.

What is better for which situation