How does such a huge company do “full deploys” like this? At this number of endpoints, only a few % should have been updated (and faced the problems) before a f

How does such a huge company do “full deploys” like this? At this number of endpoints, only a few % should have been updated (and faced the problems) before a full rolout This is not a small startup with some SaaS, these guys are in most computers of too many huge companies. Not rolling out the updates to everyone at the same time seems just too obvious