Apple has the best silicon team in the world. They choose perf per watt over pure perf, which means they don't win on multi-core, but they're simply the best in the world in the most complicated, difficult, and impossible metric to game: single core perf.
Even when they were new, they competed with AMD's high end desktop chips. Many years later, they're still excellent in the laptop power range - but not in the desktop power range, where chips with a lot of cache match it in single core performance and obliterate it in multicore.
https://www.cpu-monkey.com/en/compare_cpu-apple_m4-vs-amd_ry...
And in laptop form compared with a m4 max: https://www.cpu-monkey.com/en/compare_cpu-apple_m4_max_14_cp...
Why does it matter how they achieved their thunderous performance? Why must it be diminished to just a boatload of cache? Does it matter from which implementation detail you got the best single-core performance in the world? If it's just way more cache, why isn't Intel just cranking up the cache?
It's worth noting that Intel is not a stranger to building CPUs with lots of cache - they just segmented it into their server chips and not their consumer ones.
It matters because it is useful to understand why a given chip is faster or slower than its competitors. Apple didn't achieve this with their architecture/ISA or with some snazzy new hardware (with some notable exceptions like their x86 memory emulator), they did it by noticing how important cache was becoming to consumer workloads.
That was Fujitsu. They each have their own specialties.