Yep. Intel sat on their asses for a decade pushing quad cores one has to pay extra to even overclock.
Then AMD implements chiplets, comes out with affordable 6, 8, 12, and 16 core desktop processors with unlocked multipliers, hyperthreading built into almost every model, and strong performance. All of this while also not sucking down power like Intel's chips still do.
Intel cached in their lead by not investing in themselves and instead pushing the same tired crap year after year onto consumers.