OP is using a camera as a webcam that's not sold as a webcam. That's fine, I do the same with mine, but it's also fine of the manufacturer to allow for that by simply providing A/V interfaces instead of trying to account for every use case.
> Use the EOS Utility Webcam Beta Software (Mac and Windows) to turn your Canon camera into a high-quality webcam, or do the same using a clean HDMI output.
Canon advertising its potential to be used as a webcam doesn't mean it's a webcam. It means you can adapt it for use as one. And you still can. The adapter is an HDMI cable or software, which may or may not be free.
It's like me trying to sell you a car that can "turn into" a boat with the right attachments. Notice I didn't say how much the attachments cost.