If we wish to take advantage of this option, we will need to create a package exclusion list.
Ubuntu Mate's current one is here as an example: https://bazaar.launchpad.net/~ubuntu-mate-dev/ubuntu-seeds/ubuntu-mate.bionic/view/head:/desktop.minimal-remove
Kubuntu's current desktop seed is here: https://bazaar.launchpad.net/~kubuntu-dev/ubuntu-seeds/kubuntu.bionic/view/head:/desktop
Packages enclosed in () are desktop recommends rather than full depends.