I use the virtual camera on linux daily. No problem. But I had to install later packages that weren't on apt.

hm, I've used it using v4l2loopback and while finding the right parameters was a bit fiddly it then worked fine.

yep, can second the needing to fiddle a bit-- i've had some pretty annoying color issues as well, where i fix white balance, etc. in OBS, but the output in Hangouts/etc. looks terrible, like it's ignoring the filtering i'm doing, or there's a pixel format issue or something

It's built into 26.1 rather than requiring the plugin (which I could never get to work for me under linux), although if installed via snap you have to enable v4l2loopback manually