I’ve observed this personally but I didn’t know it was studied. Can you provide a link to a study about it?
By study, I don’t mean in a lab setting, but more so the data has been collected by employers reporting that their Gen Z staff is technologically stunted.
https://futurism.com/gen-z-baffled-basic-technology
https://www.theverge.com/22684730/students-file-folder-directory-structure-education-gen-z
https://www.digitaldisrupting.com/gen-z-kids-apparently-dont-understand-how-file-systems-work/