Thank you for your feedback. We’re happy to announce that Mac support for sharing system audio is now available to users who have opted into Public Preview.
You can learn more about the new Microsoft Teams Public Preview program here: https://aka.ms/TeamsPublicPreview, and Teams administrators can find documentation to manage which users will see the Public Preview option here: https://aka.ms/TeamsPublicPreviewAdmin
Thank you for your feedback. This feature is still on the backlog, and planned for later this year.
In the meantime, you can try using the keyboard shortcut to toggle mute (Ctrl+Shift+M). For more info on keyboard shortcuts, visit https://support.microsoft.com/en-us/office/keyboard-shortcuts-for-microsoft-teams-2e8e2a70-e8d8-4a19-949b-4c36dd5292d2.
An error occurred while saving the commentAndrew Hendrickson commented
Greetings- This issue also occurs on 10.14.6. Teams is highly unstable until I unplug my USB headset (Sennheiser)