The music is played on mediaPlayback type Foreground Service.
When notification for Foreground Service is swiped away, the music keeps playing on Android 14 devices. This is because of the changes to non-dismissible notifications that is introduced in Android 14:
https://developer.android.com/about/versions/14/behavior-changes-all#non-dismissable-notifications
How can I stop the foreground service when its notification is swiped away on Android 14?