isUsingCompatibilityAudioRouting
Returns true if the SDK had to fall back to compatibility audio routing.
This can happen: - when the process doesn't have the `MANAGE_OWN_CALLS` permission, - on devices which do not have the Telecom Stack available, - on very devices where the Telecom Stack is extremely buggy.
Return
StateFlow that will emit true if the SDK is using compatibility audio routing, false otherwise.