Teams call changes my global microphone sensitivity

I currently have to take online classes and our school uses Teams for group calls and stuff.

Simultaneosly I allways talk with discord to my classmates. But allways when I join a call from our techer my mates complain about my microphone to be suddenly extremly loud in discord, and i can see that the sensitivity is been lowered due to me allways sending (beeing marked as talking) even without talking.

I don't want this to happen how do I prevent Teams to change my microphone sensitivity settings?