If you don’t have a mute button on your microphone, the next best thing is software that will mut...
If you don’t have a mute button on your microphone, the next best thing is software that will mute your microphone at the system level. MicDrop is an example of an app I’ve tried for this (Mac only): https://getmicdrop.com
You know it’s working when the meeting software starts throwing an ”error” and saying it’s not picking up sound from your microphone.