Thanks to the community for reporting and sharing the steps taken to fix:
Fix 1 - This worked on Mac OSX Tahoe with the latest version of Chrome. Doing it twice fixed it for several people.
Click the 🍏 Apple Icon on the top left
Select System Settings
Click "Privacy & Security"
Scroll Down and Click Microphone
Look for Chrome (See below)

Toggle Chrome Off
Restart
Return to the same menu and Toggle Chrome Back On
Keep in mind when you visit GoBrunch you will have to give access to the Microphone again