Wasn't that the case for switching from PowerPC and even the 68k? Intel based Macs seemed to be alright up until 2016 when then modified the design of the chassis, which led to thermal issues. If they keep the 2012 to 2015 design, there wouldn't have been as much issues.Intel Core in early days. My how we all forgotten (especially with Core2Duo lineup). Not no more since then until M1![]()