Thanks for the info. I like to stay current, so I’ll update to 19.0. I also like KDE enough to at least try the add-on install. I used the Cinnamon edition of Mint on my laptop a couple of releases back. It’s not bad, I just prefer KDE - I use KDE on RHEL at work so...
Likewise, I prefer KDE over Cinnamon (or Mate). KDE is just so much more flexible, so we have more control of how our compter (and DE) operates.