What is the scan interval that is currently being used by Android for the Nearby Notifications feature (app-less)?
On a parallel note, does the stability value for the beacon have anything to do with this interval? How/If is the Nearby Notification affected when the stability value is changed between stable, portable, mobile & roving?
Nearby Notifications scanning is also the same as Nearby Messages background scanning. It does so at every screen on.
The stability of the beacon does not affect Nearby Notification.
According to this Google I/O talk : https://www.youtube.com/watch?v=Acdu2ZdBaZE&list=PLOU2XLYxmsILe6_eGvDN3GyiodoV3qNSC&index=28
If Location History is enabled on the device, BLE scan will also be done in the background. Although I cannot find the exact interval in the documentation.