Thank you Stephan for your reply. That setting does change the size of the icons within Nautilus, but not the desktop. I should have been more explicit, and after all, I did ask if it’s me .
Under Nautilus 3.14.3 (Ubuntu 16.04.3) in Preferences, there was a setting named “Icon View Defaults” and a list box named “Default Zoom Level” with selections from 33% to 400%. That also controlled the desktop icons.
Your screenshot above is the current look for Nautilus 3.26.0 (Ubuntu 17.10 and 18.04). Somewhere along the Ubuntu 17.10 and Nautilus development path, it was even a slider, but at this point the range is 50% to 200% and it no longer changes the desktop icons.
Like I also said, this is minor, yet for those moving from some other O/S or distro, the cosmetics will be important. Kubuntu 17.10, for example, has a right-click-on-the-desktop popup menu where a user can select from “Tiny, Small, Small Medium, Medium, Large, Huge”.
Thanks again Stephan!