I’m not OP, but I also prefer KDE over Cinnamon. The size/spacing of the buttons on the left side of the start menu/application launcher looks weird to me, and while I’m sure there’s merits to Cinnamon that was enough to sour my tastes.

The thing about IT for older folks is you have to be up for conversation too. Most of the customers I have only get out for church, so if I come out to see them it might be the first conversation they’ve had in days.