I have a Logitech C920 and am looking to upgrade. Something suitable for streaming.
Some annoyances with the Logitech: sometimes autofocus fails and poor reproduction of blacks. Ex: Lack of detail when a black cat is on screen.
I already have a nice mic-- the webcam doesn’t need one.
Well, Apple is, Apple.
Maybe a Logitech StreamCam will deliver better results for you? I don’t have complaints about my C920 but I don’t push it so far like you seem to do.