We are *considering* as an option to enable building WebRTC support by default using GstWebRTC in the upcoming 2.52.x stable series in Sprint next year, and shipping the needed additional sources in release tarballs. It won't be perfect, sites may or may not work, but then we would continue improving from there onwards.
Again, I am not saying it will happen for sure; but we (the WebKit GTK and WPE port maintainers) have been discussing the option, so it *might* happen.