>>315487945
the javascript webXR/webVR API itself works fairly well. there's a short list of stuff built on it at https://webvr.directory/ , most are built on https://aframe.io/ . I put together a 4chan thread museum viewer with it in webm related, eventually I'll pick up that project again.

 As far as more janusVR-like platforms, I think mozilla hubs is the most alive. There's also https://exokit.org/ which was following for a bit; unfortunately the devs have this cryptocurrency bent which leaves a bad taste in my mouth, but they do interesting work.