It's kind of wild to me how there's such a product vacuum for this stuff. I've dug around and the only real option is an HDMI capture card paired with a decent camera (I read this Sony software option is lower quality, but at least it's progress). LG camera setups target businesses and are generally overpriced crap (I have one - the LG meetup) with proprietary connections and mediocre cameras, and crappy mics/softwar…
No capture card required, just the EOS Webcam utility and a USB connection. It runs very slowly, though. The latency is bad and so is the frame rate, though the picture itself is great. I've heard that reported for many supported cameras and varying computer specs as well so I'm not sure how long that will continue...