What I'm asking about is say there was a global catastrophe and life as it currently is, is no more. You don't have cross-continent shipping, electricity sometimes works... internet may or may not work/probably not maybe crude MESH networks are in place, I'm aware you can even use HAM for data.
So... it seems like modern laptops/devices would not be used... I guess they could be if you had a generator... if you wanted to write new software/no SO-public repos to use... the crazy builds/compile that pull dependencies down.
The computers would do less/not be as fancy as now I suppose.
Maybe you'd use CLI more than a GUI.