On Android the audio is heard from the same output sink, even if it has been changed to another.
- If the headphones are set, the audio will only be heard from them even if the output sink is changed.
- If only the built in output sinks are available , the audio will only be heard from the built in speaker even if the output sink is changed to the built in earpiece.
Tested on Nokia 6.1(A10), OnePlus 7(A11) and Sony xperia5(A11).
Works at least on host(Ubuntu 20.20).