This is really cool, I joined the launch chat and people were emulating in real life behaviors like standing in a circle and moving their focus to the speaker. I also noticed that multiple conversations were happening at the same time, without interference since the audio is spatially modified.
Love the fact that it's entirely in the browser without an app too.
What you are describing sounds a lot like AltspaceVR
I am visiting a weekly XR Meetup on Thursdays and it feels a bit like going to a conference. You have someone presenting their work, with displays and people gathering in groups chatting about things.
Love the fact that it's entirely in the browser without an app too.