Yes, for our business, firmware and graphic card updates didn't solve the issue for 2 devices (SP8). I had to replace them and send them to warranty. I probably sent over 25 devices to warrant last year. Imagine the time wasted by an IT person for just a camera issue, especially if it's such a small team.
I haven't seen any other brand devices having the camera issue.
Agree about products. For the same price, you can get Surface Laptop 5 which works rock solid. So, I don't recommend any business Surface Pro models. Personal use may be okay but I'd still not buy for personal use either whilst can get a laptop version for the same price.