Given Apple’s current locked-down trajectory with the Mac, the Mac Pro was gonna die eventually, and it’s for the best that it does given it was reduced to little more than a massively overpriced Mac Studio grafted onto a useless PCIe backplane; a $12k grift, basically.
PCs at least are still modular and expandable; for now.
A-series would already be at a disadvantage due to being designed for iPhones and the design parameters that entails compared to the M-series.
I can’t remember if it’s announced or rumored, but I think there’s an entry-level MacBook coming with an A17?