https://wccftech.com/windows-11-build-22494-is-out-with-the-ability-to-mute-mic-from-taskbar/

Microsoft has just dropped Windows 11 Build 22494 for its Windows Insiders community signed up with the Dev Channel that is currently testing the future updates of this new operating system. Today's release brings several improvements and fixes. It also introduces the ability to mute or unmute your microphone from the Taskbar.

No more awkward or embarrassing moments when you forget to unmute or mute your microphone. Starting with Microsoft Teams today, you’ll find a microphone icon automatically added to your taskbar when you’re actively in a call. You can see your call audio status, what app is accessing your microphone, and quickly mute and unmute your call at any time.