Which makes sense for an ERP software. Because you have financial related data linked to your name. It cannot be deleted or the books would be wrong. After some years it does get deleted because no it’s too expensive to not archive.

But for Facebook, I do not see the reasoning. But I trust them to find a loophole if there is one !

Is it sure? I’ve done it 15 years ago but I remember clearly there was an option to delete everything. Could it be that it’s only for EU?