I'm using a Google Pixel 5 with Android 13 Beta. It has an Extreme Battery Saver mode which the system will ask me to turn on if the battery level goes under 10%. After it is enabled, most apps will be paused, except for a few essential apps: Messages, Phone, Clock, etc.
When I tap on a paused app's icon, for example, YouTube Music, it will show the prompt:
App paused by Extreme Battery Saver
Keeping [app's name] paused extends your device's battery life.
You can unpause it temporarily or set essential apps to always work in Settings.
Unpause temporarily OK
I tried to change the option to Unrestricted in Settings > Apps > All Apps > YouTube Music > Battery > Optimized, but it doesn't give the desired effect.
What is the right thing to do to allow custom apps to always work in Settings?