Yet someone could provide all of that for _everyone_ for literal 0-cost, and probably an actual ISP would provide at least some written guarantees on the redundancy of your data.

The business model of all these companies is to tie their software to their expensive storage.

But it's not 0 cost. You need storage redundancy, backups, software updates. Those things cost time.

Yes, it does. It has automatic snapshots, up to ten. Google doesn't have that, if I delete a file from the trash is gone forever.