An Android - wide Data Saver feature
restricts background activities of apps.Here's how: Open Settings, and tap Data Usage.
Android's Data Saver, introduced in Nougat,
restricts background activities for most apps and even certain ones in the app you're currently using as well.
Another vague feature that appears in the report is that Android 8.0 will come with
restricted background activities that would help keep down power usage of apps that run in the background.
Whereas in the Advanced mode, the MIUI
restrict the background activity when possible.
Not exact matches
A new feature called data manager will give users option to
restrict background data
activity for any app, thereby saving data and money.
Pesky
background activity that drains your battery and data plan have been
restricted, another perk of Oreo.
If you find yourself getting close to the limit but are nowhere near a charger you can always enable the battery saver which
restricts background data
activity in an attempt to eek out more life.