>And as someone who worked and still works in IT support, users will not save to network drives, their machine will crash and files will be lost. [...] OneDrive has solved this, like it or not.

In my previous job there was an app(by Dell EMC I think) that would run every day at lunch and backup all your user document folders to some company network drive. You could then view all your backup files in the webUI.

So network backup feels like a solved problem for decades now.

However, cloud is more than just a backup solution.