https://www.pclinuxos.com/support-pclinuxos-in-2018/
PCLinuxOS is a systemd-free distro that has barely changed since its release. Think of it like Slackware's philosophy
It's RPM-based with an apt-like package manager. No dpkg, apt-get or apt, just apt-get RPM. It features the KDE Plasma and Mate desktops but also provides Xfce and Trinity.
tl;dr rolling release systemd-free kde plasma binary distro with rpm-based non-bloated apt package manager needs moneyz