MS Teams has that feature too.
TBH I'm not surprised: when you mute the mic in an app, you're still letting the app in control. If you really want to be safe, you need to mute at OS level or in hardware. That's why cameras have a hardware cover in modern laptops.
> How about we not make the default that companies can do whatever they want and users have to take steps like a hardware-muted mic (which isn't always an option) to ensure a basic expectation of privacy?
Sounds nice on the surface, but is ultimately silly. Sure, it'd be nice if everyone did the right thing, but you can never guarantee that, and hence if you really care you need to perform the mute at a lower level than what the app has access to.
And the increasingly (or is it just perceived?) shady behavior of big companies are not helping.
I am afraid this eludes our leaders across the board.