I found this to be some kind of timing issue. If I flip the camera off then back on repeatedly the EOS Utility 3 sees the camera at some point, usually about 4 attempts. Also, I've upgraded from Ventura to Sonoma.
I'm getting similar results with Ventura 13.6, EOS Utility 3 (3.17.2), camera firmware up to date. On the initial connection I was prompted by the OS to allow the accessory to connect, I did, and was able to use the remote shooting feature. All sub...