Thing is nearly all the ARM-chip manufactures are similar or the same.
One of the weird things about the Apple M chips (well at least on Laptops) is you can make the more open source than most ARM chips.
This is one of the reasons why I sort of dread the upcoming move to arm on desktops and laptops, despite the potential massive performance improvements. At least it seems like the industry will need to head that way if they want performance per watt on par with the Apple M chips.