Here's a fun one
@BrodieOnLinux How backward repositories of your distro must be to still ship kde5
@furry @BrodieOnLinux Debian stable I think...
@etenil @furry @BrodieOnLinux There's a handy site called repology for that:
https://repology.org/project/plasma-desktop/versions

KDE5 is still in use on Debian stable, LTS Ubuntu, OpenSuse Leap, Slackware ...
plasma-desktop package versions - Repology

List of package versions for project plasma-desktop in all repositories