The core problem (from an Apple business perspective) is that they were using chips that were a group project by ibm and Motorola, where IBM made money primaril

The core problem (from an Apple business perspective) is that they were using chips that were a group project by ibm and Motorola, where IBM made money primarily off the server class Power chips, and I’m not sure if Motorola ever made money? That meant that the performance requirements of a laptop were simply never going to be IBM or Motorola’s priority. The last PowerPC Mac was the G5 tower, and that was an amazing case with incredible cooling setup because it needed it. The G5 used a ton of power, and generated insane amounts of heat (seriously those G5 heat sinks were larger than most pc gamer/modder heat sinks if there era, before considering the enormous airflow, and even a flow shroud. Simply put there was no way a G5 was ever going to be in a laptop that was actually portable. That’s what led to Apple migrating to intel - intel at least was interested in consumer hardware, and portable computing as well. So the important thing is that Apple’s own cpus are presumably always going to be aligned with what Apple wants, in a way that they can’t rely on others to do.