Canon EOS Webcam Utility Setup DSLR Web Cam Setup (T7i)
A quick video on how to set up your EOS as a web cam. It is not very impressive so hopefully Canon does something to improve this. It does not transmit audio over the HDMI cable either so you will need an external microphone. How horrible.
This video shows how to use the camera at 1080p or 4k:
• How to stream in 1080p or 4K with Canon EO...