I have been doing this journey backwards. I don’t find Ableton on my Mac mini pro M2 to handle well heavy workloads. I really love the Slate and Ash libraries, but it puts me off when the load is allocated to the efficiency cores, while the performance are just idle. For the usual loads, it does the load spreading across the cores quite well. But still with all those great M4L devices, I don’t feel like dropping Ableton, so I’ll be building a 7950x desktop.
Still I feel the Macbook air M1 is an incredible all rounder, nearly 3 years after it’s launch. Gonna keep that one !