I was messing around in https://hubs.mozilla.com/ recently and I'm pretty impressed with their progress. They've added a lot more environments and some (very basic) avatars now, and the spatial voice chat still works fine. It also has fun neos-like capability to drag in images and videos from your computer into the world, and you can synchronize playback of videos/streams. And unlike neos it actually runs well and isn't painful to look at.

The main issue I found is webVR support in browsers has been severely neglected for the last two years. I can't get firefox to connect to steamVR at all, only a clean profile of jewgle chrome worked. If anybody knows a reliable setup for PC + webVR these days, I'd be interested to hear. If I get something working reliably, I'll try to host some sort of meetup/watch session in hubs.