When I go to the EOS Utility Main Page, and select the 5D Mark II, I don't see the utility listed at all under the software section. It is there though on the 5D Mark IV page. There you can download "EOS Utility 3.14.10 for macOS". It installed on my iMac Pro running macOS 12.1 (Monterey).
Note that it's still an Intel-compiled application, so if you have an Apple Silicon Mac, it will run via Rosetta 2. Hopefully Canon will create a Universal version of this app in the future.