How I did a variety of things. Tutorials.
Commercial demands mean I must return to Windows, I found ways to bring over some of what I've missed from Linux.
I finally acquired a PineTime smart watch. I thought to offer my opinion on the device with some useful tips for getting started.
xdg-mime configure the default applications for opening file types. A situation has forced me to learn their use.
When shuffling on random, there is no easy way to remove the 'Pictures' slideshow from the list of screensavers in xfce-screensaver. Still, I found the answer.