The latest desktop version of Webex Teams (40.11.0) breaks all in-meeting keyboard shortcuts (toggle mute, video, etc) as described in the below article in the "Meetings and Calls" section.
Team Collaboration - Webex Teams | Keyboard Navigation and Shortcuts
We've reported this to TAC but I thought others should be aware before upgrading as many people rely on these shortcuts. Let me know if your experience is different.
I'm also curious to know if any Mac users are experiencing the same, as I don't have a Mac to test with.