I think they use cloud providers in regions where they don't have physical footprints, to offer data locality guarantees. But the testimonial only talks about

I think they use cloud providers in regions where they don't have physical footprints, to offer data locality guarantees. But the testimonial only talks about Dropbox's data lake. So this is not about dropbox's main product storage, it's "just" their data lake for analytics. (which is apparently 32PB !)