The surface area of the Apple suite is now enormous. We now have an incredible array of devices, physical environments, and purposes. It's really quite staggering: just look at the spans between a) checking the UV index on Apple Watch and writing code in Xcode on Mac, b) tracking an outdoor run and navigating with Car Play and watching a movie on Apple TV, and c) messaging and maneuvering spreadsheets and designing/building. Huge expanse across each spectrum.
Apple's effort to maintain some semblance of consistency across this incredible array is laudable. (Which is not the same as letting the grievances highlighted in this article slide; I agree with the author 100%.) We all want consistency (probably to a degree greater than Apple is capable of delivering) simply so that we can use the metaphors we're familiar with.
I imagine Apple has dozens of design teams, each of which cannot talk to more than a sliver of the others, with probably not a single person aware of exactly how many design teams exist at once. There was probably a period in Apple's history – and probably not that long ago – when a single employee could assess the iconography across the entire suite. Those days are over.
My question: beyond preventing the obvious and severe transgressions (Liquid Glass), what systemic solutions are available on a scale like Apple's to maintain high-quality and strong consistency?
(I appreciate that Apple does generally one design refresh per year, in contrast to the continuous zero-utility tinkering observable in Google's products, for example.)