Investigate behaviour of recent apps list for various manufacturers
Many manufacturers have custom implementations of the recent apps list.
On Xiaomi/Redmi phones, locking an app to the recent apps list prevents it from being killed by the system's power manager, which would otherwise happen even without clearing the list.
For as many manufacturers as possible, find out:
- whether clearing the recent apps list kills Briar
- whether apps can be locked to the recent apps list
- whether locking prevents Briar from being killed when clearing the list
- whether locking provides any other protection (e.g. from the system's power manager)