I would like to use the microphone as well as the headphones of my headset

Hello,
I realized that the bluetooth of my Dell laptop antenna is far better than anything I can plug into my PC.
So I am using the laptop to connect my headset while using the PC.
This works fine with just playing audio.

However, I would like to use the headset also to talk to chat GPT.
so I would need another audio channel from the headset to the the PC.
How can we do that?
starting 2 instances didnt work.
Any suggestions?