Where I work they have been running in-house video meeting infrastructure for close to 20 years. They abandonded all the equipment and expertiese a few years ago in favor of Zoom. For all its faults, it's just so much easier for users. They probably saved 10 or more minutes per meeting of "Can you hear me? Can you see us? Can you see my screen?" BS at the start of each meeting.

I guess it also helps that these days most people are working with phones or laptops that have integrated and well supported cameras and microphones, vs. then when that stuff would have been external peripherals and required installation of the proper drivers.