Linux issues

Bluetooth headset no mic

https://askubuntu.com/questions/985615/bluetooth-profile-locked-to-a2dp-high-quality-audio-sink-but-cannot-change-to/1223200?newreg=e5aa9da1e11d40ba95190725d1f74455
https://askubuntu.com/questions/831331/failed-to-change-profile-to-headset-head-unit
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth/
https://www.pcwelt.de/ratgeber/Typische-Bluetooth-Probleme-in-Linux-loesen-10588033.html

Fix

https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/288