I tested Artix Linux: An enjoyable systemd-free distro for experienced users (and ChromeOS speeds)

If you want a stable Linux distribution with a unique take, Artix is one of the fastest and most reliable I've tested.

KDE Linux is the purest form of Plasma I've tested - but the install isn't for the meek

Linux distros present KDE Plasma with a version customized for that particular OS. KDE Linux offers the purest version.