I have two laptops sitting side by side, one from HP and the other from Dell. Both are running Kubuntu 22.04 with Plasma 5.24.7, KDE Frameworks 5.92.0, QT 5.15.3, kernel 5.15.0.53-generic (64 bit), and X11. Both are running Dolphin 21.12.3. Both have kio-extras installed.
Yet there is a painful difference in how the two laptops display a folder of JPEGs. In each case the Dolphin settings under General/Previews have "JPEG Images" checked. On the Dell, the items in the folder are preview images, just as they should be, but on the HP they are just icons... not what I want at all.
What could account for the difference?
Update 1: There are two questions in the previews configuration page.
"Skip previews for local files above". I accepted the default: No limit.
"Skip previews for remote files above." I accepted the default: No previews. But this is a badly worded question. Does "No previews" mean "Don't skip any" or "Skip all of them"?