Proton 9 + Debian 12 + Bluetooth headseat = no sound

[Adester]

Hello,

I use debian 12 and logitec bluetooth headphones. When i launch games with proton, then there is no sound whatsoever on my whole system. Not only the launched game, but also any other sound source doesn't work anymore.

The weird thing is that if there is an active sound source playing while i launch the game, everything works fine.

So, this is nothing critical. I can play a random youtube video, start the game, close youtube and play with sound.

I don't have this problem when i launch linux native games.

Does anyone know why this is happening, or point me to what to look at? Any clue?