Hello BrittSea,
Thanks for reaching Microsoft Community. We're sorry for the inconvenience this has caused you.
On Windows, if you are in a Microsoft Teams meeting and take Surface Headphones 2 off your head they will automatically be muted. If you then leave the Microsoft Teams meeting and join a second Microsoft Teams meeting, Microsoft Teams will show you as unmuted, but Surface Headphones 2 are still muted. Press the mute button on your Surface headphones and others will be able to hear you speak.
Hope this helps. Let us know how it goes by responding on this thread.