idk, sure seems like we could have 1-2 cores (permanently pegged?) at 5 ghz for UI/UX then ($money / $costPerCores) number of cores for showing off/"performance" by now. But the OEMs haven't gone that way.
EVERYTHING that chip did, could in fact be done with a GPU today. It isn't, for the most part, because window systems evolved to be CPU driven, although a lot of phones these days do the UI in the GPU, not the CPU for this same reason. There is a fun program for HW engineers called "glscopeclient" which basically renders its UI via the GPU.
So I'm wondering if I misread what you said and are advocating for a different GPU micro architecture or perhaps an integrated more general architecture on the chip that could also do UI like APUs?
Not sure the OEM's have what it takes to do that without a serious rethink, and that is what an M1 basically is.
And say they do...
Amdhal's law is still going to be a thing because people are unlikely to believe having two cores running balls out whether essentially idling or pushing high priority interaction... they will see it very poor energy management, and would want tasks moved onto and off those always fast cores at a minimum to reduce what they see as waste.