chrome PROTIP: noisy tab icon can be a mute button

So I managed to get a little bit of reddit juice with

That Google Chrome "what tab is being noisy?" speaker icon should function as a mute button.

But then longandshortofit followed up with

enter "chrome://flags/#enable-tab-audio-muting" into a tab, hit enter, click enable.

Done and Done

Wow! Interesting that that isn't the default, especially because the icon is pretty clear when it gets muted.

I guess it's a beta feature that might be promoted.