This camera was suggested to have a August 27 2020 release date, how could it possibly be in any Apple camera raw update, or even Adobe DNG converter release yet? The .jpg images from this camera are viewable in Catalina 10.15.7 Finder, but not the .CR3 raw images.
If/when it becomes available, look for it eventually in one of the macOS 11.x (Big Sur) updates either this Fall or in 2021. Only Apple and Canon know when this camera will be supported in a future operating system update. It will not be supported in Catalina as Apple does not make camera raw support for older operating systems.