It was clear a few years ago Intel changed focus from desktop CPUs to mobile and other areas (they even said it themselves). AMD has been 100% focused on gaining market share.
While the new AMD are impressive by current standards of improvements, CPU improvements are rather stagnant. Most desktop technology these days is just inching along.
I used to upgrade my PC yearly, now I find it difficult to justify even doing it every 3 years but I have little tolerance on waiting for a computer so I upgrade anyway.