Huh? The only benefit?
It's been stated and it's common consensus at this point that the Arm Chips will run more efficiently and far cooler meaning better potential battery life, less or no fan noise and better thermals meaning less thermal stress to the insides of the computer.
That's a massive deal if you're using a lap top computer.
yes, obviously the only benefit.
and yes, “it’s been stated”, but those things are obvious nonsense. They won’t run cooler or have better battery life or have less noise. They only way to do those things is to have less power, which you can also do just as easily (at least) on x86 hardware by limiting clocks. Other companies do that today.
this doesn’t do ay of those nonsensical things, it just gives Apple more money.