You shouldn't compare rpm with apt. rpm is a different layer equivalent to dpkg in the Debian world.

As you point out, apt layer/functionality is provided by zypper, yum, dnf, etc. and the main difference is that it is not unified across the main rpm distributions. Still, Fedora/Redhat yum replacement, dnf, is built on SUSE/openSUSE zypper's solver library (libsolv).