v5.1.6-rc0 (50106000)
Devices:
Xiaomi Redmi Note 13 5G (Android 15, HyperOS 3.0.4.0)
Apple Airpods Gen 4 (not ANC)

Greetings!
After the connection is established (when there is sound coming from the earphones), the main menu shows a lack of connection (a crossed-out chain). I enter the troubleshooter and it says that everything is working.
In this situation, the notification and pop-up window do not work, so it i'm not sure for that to be a UI issue.

But if I press pairing on the Airpods, the main menu screen updates and shows the presence of the connection (increasing bars).

Best regards
Mark