FYI: On 3/30/2021 Canon released an update of the EOS Utility 3.13.20 for macOS for Big Sur. After installing the update everything works again for me. https://www.usa.canon.com/internet/portal/us/home/support/details/cameras/eos-dslr-and-mirrorless...
Do we have any knowledge of when Canon is going to officially update EOS Webcam utility for Big Sur? Prior to upgrading to Big Sur everything was working great, but afterwards Webex is :'(
