Correct me if I am wrong but the heat problems were essentially Intel chips in the mid to late 2010s right? They are all essentially the same chip design with small window dressing added each year. The underlying problem is the same. Old design that suffered from Intel's issues in their fabs.

Yes, but there was ample time for Apple to re-design the thermal system of their macbooks. Instead they kept releasing extremely thermally limited device year after year.