OK thanks. I will download the image directly.
I checked the official packages and not there for kubuntu for some reason. digiKam - Installing a package
I also checked flathub and that’s still at the release candidate 7.0.0-rc Flathub—An app store and build service for Linux
I am scratching my head somewhat, but I guess ‘this is Linux’ should be my answer. I guess it will take a while for 7.0.0 to actually make it into the (stable) OS packages.
It looks like the safest option is to just use the app image directly for now until it shows up in the store.