“It’s bad,” they said, and you were unprepared for how bad but you installed the thing anyway and hoo boy wow. Icons don’t align. Corners are inconsistent. When you navigate away from a list of items and back, a black band appears on the lower third of the screen. Moving emails from one folder to another, a thing you formerly did several times a day, is now completely broken, showing a blank screen instead and forcing a long press. You think wow, this is really bad, maybe they will fix it on the .1 update. In practice, you end up running alpha-grade software across all of your platforms for the next ten months.