the thing that gets me about the idea of a full-lineup ARM transition for the mac is that i just cannot imagine apple bothering to make unique custom CPU designs for a product as niche and low-volume as the mac pro
at this point there's too much smoke for there not to be a fire coming from an ARM macbook in the nearish future, but i still can't really grasp how they plan to reach the entire mac line top-to-bottom
I think they wouldn't care about the lower runs if they treat it like the Halo car of their chip design.
I feel like they don't really feel the need to rush, though. The foundation with Swift in Catalina is there but it's still pretty rough.