Thanks for the screenshot, but it doesn't answer my question. I've got a Catalina CCC task that doesn't copy "system" files, but included in the files it doesn't copy are /Library and the third party component of /Apps, which are actually components of my data volume, and I've been wondering whether CCC does the same with Big Sur or if it copies the ENTIRE data volume. I guess I'll find out first-hand soon.
Assuming that the entire data volume is copied, updating the clone with macOS updaters as they're released should leave us with an up to date bootable clone, albeit not a very conveniently achieved one.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
