Hey everyone! 
Quickly deploy, share collaboration environments: one can share camera, browser windows, rez objects from Google poly models, etc, with Mozilla Hubs: "Share a virtual room with friends. Watch videos, play with 3D objects, or just hang out" [1].
Hubs is a VR chatroom designed for every headset and browser.
Best regards,
References
[1] Mozilla Hubs (2020). Available online in: https://hubs.mozilla.com/ (accessed in: 24th january 2020).
Visibility:
Public - accessible to all site users