Logitech BCC950: https://www.logitech.com/en-roeu/product/conferencecam-bcc95...
If I had the extra space and time to set it all up I would probably use a regular SLR camera on a tripod, and lavalier mic. But the Logitech is a lot more convenient - connects over a single USB through the docking station and just works with zero set up.
The screen is just a regular LG 4K 55" TV mounted on the wall which connects to the laptop docking station, allowing video conferences, slides, etc. to be "thrown" over there when it's convenient.