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/software.
The Facebook Portal is a magnitude better and 10% of the price, but it's FB - they do support zoom now though so that's a decent option.
Computer webcams top out at not very good logitech USB devices.
You'd think there would be a high-end market targeting streamers with computer cameras focused just on that in-between the mirrorless/DSLRs for photography.
I'd love to see better products in this space:
- High quality camera for videochat that can be connected to a computer.
- High quality camera/mic that can be attached to a TV.
- Dumb TV, high quality panel, that starts up fast, has a lot of ports, no internet connection, with a remote designed by someone who thought for 5min about what buttons are required this century.
A dumb TV with a high quality camera mic setup might be interesting - plug in a mac mini and be good to go.