So here’s a teacher’s insight:
Mac:PC:Chromebook Rich—Poor
There is a very strong correlation between the wealth of the kids on my module, and the device they have.
Mac users really struggle to understand the concept of local files without being shown. PC users, alas, snort too much SharePoint these days to be considered healthy - trying to save a word document locally these days is like climbing a mountain blindfolded. As for the Chromebook kids, they do their best with what they have, and given how little compatibility those devices have with the software I teach, I’m proud of them.
Most of the time it’s realising the difference between local and cloud storage. A lot of students get confused when trying to upload their first coursework - usually it’s solved by just showing them the difference between local files (this is stored in a permanent local place) and cloud storage (this is stored permanently somewhere else).