The power intensive app shows you a notification on your drop-down menu of the apps that you are using and is consuming your battery at that time of the notification. Many of us might see this notification as annoying so here is how to remove it.
When the notification comes up press on it, it will change to Xmanager with an “I” icon on the left, now tap the “I” icon, it will take you to Xmanager. Disabled the allow peeking from xmanager and the power intensive app won’t show again. You can see below images