In other Linux news ...
Slackware-current now features LTS kernel 5.10.x ... I've been beating on this release on several test boxen since Dec 20th, and so far, so good. It just seems to work, with no headaches. As is usual for Slackware.
Along with the latest LTS kernel, i has the latest KDE & Plasma (and/or XFCE if you prefer), along with the usual up to date bells and whistles.
Still no Wayland (optional, though) or systemd-cancer, for you purists.