Disable Voicechat completely or change audio device manually

I generally game with Bluetooth headphones and a standalone mic on my desk. However, in F1 24 (as in all previous F1 games, the voicechat function seems to suggest to the headphones that you´re in a call and makes them switch to Hands-Free mode with enabled microphone. This then causes you to not hear anything from the game, because the game audio is still being output to the normal headphone speaker, as per the windows settings.

If I´m not mistaken, EA still doesn´t provide an option to completely turn off voicechat (and also any communicating with your race engineer over mic) altogether, which is the only way you could fix this issue. The options that are provided in the audio settings, turning on push to talk and being muted by default don´t help in this case. Does anyone know about any other way to turn off the voicechat function completely or force the game to use the correct output device somehow?

Much appreciated :)