I guess you don’t realize that Apple essentially created the personal computer, designed by Steve Wozniak, and Apple was a founding member of ARM Holdings.
First off, Wozniak for all his immense contribution was all but marginalised to insignificance by Jobs - who acted as if all the wisdom and knowledge of the ages flowed from his own mind alone.
Second, Apple was 1 founding member among 3 of ARM - including the Acorn Computers from whom the original eponymous name of Acorn RISC Machines was derived before changing to Advanced RISC Machines.
Giving Apple undue credit for ARM is like giving the same credit to them for PowerPC when Apple were not their only customer or founder, and especially a pointless credit as they all but spurned ARM after Newton failed, which probably did as much damage to ARM then as Apple did to IMG Tec when they announced they were making their own gfx IP, which all but tanked the company leading to its present difficulties.
Had Intel not been so shortsighted over the sales possibilities in the smartphone market then ARM would probably not have reached where it is today, which is both a result of their being second choice to Intel, and also because of Samsung and the other Android smartphone vendors that followed close on Apple's heels after the iPhone launch.
A thing that people often do not grasp is that without competition you do not get great, sustained development of anything - this is just as true for business as it is in war (both cold and hot).
A lack of competition with the iPod led to it basically being abandoned despite advancements to the technology far surpassing the point of the final generation - and no the flash based iPods don't count, they took years to reach the same capacity as the final HDD based iPod Classic, calling the flash based products iPods despite their reduced capacity was all but insulting the intelligence of the consumer.
Without sufficient competition from AMD, Intel embraced hubris with their 10nm plans, leading to some of their current problems.
Without stiff competition to the iPhone from Android smartphone vendors Samsung, HTC etc etc Apple would probably not even have invested in a prolonged custom ARM core project for the Axx SoC, and likely we would not have the ultra high PPI displays used in modern VR headsets either, to say nothing of the various other technologies that benefited from the smartphone competition.