Consoles Twitch Stream (COD MW)?

I'm streaming on Xbox on twitch with my colleague who has a ps4.

I already have business that you can hear my colleague but mega quietly.

is there a way whether Xbox or ingame (COD) to get them louder so that you can hear them louder in the stream?
So the twitch app on the console does not work. So maybe I thought of in-game settings

I would look in your place if you can make the in-game chat louder in the in-game settings under audio.

If it doesn't work, you have to turn down the general volume of the game and make the game chat louder.