As an Apple outsider it seems to me that Apple’s big leap forward in desktop computers/laptops was moving to Intel processors. Big leaps #2 and #3 were iphones and ipads. Out of these three, iPhone was the leap that made and makes the most money (income) and profits.
This is true - with the caveat that it is now a relatively small leap from iPhones using non-Intel processors to Macs, small and big, using those same processors. Intel is on notice, I’m sure.