Back when Intel were really resting on their laurels it was hard to tell. Now we have M1/Ryzen you can reach some sort of conclusion depending on your view of those:

- doesn't unlock some major new application for computers, 99% just want Office 365, which ran just as well on Sandy Bridge -> whole industry stagnated, being a couple of years behind is fine

- (M1 especially) battery life/perf is improved in a way that will matter to many -> Intel specifically risk being left behind in sector that still has the potential for big changes