> Apple confirmed their switch of their computers to the ARM ISA now.

Seems that with this switch, Apple computers finally got something from the CPU vainly made especially for them in the first place (PA6T):

"This series adds support for the I2C controller found on Apple Silicon Macs which has quite a bit of history: Apple bought P.A. Semi in 2008 and it looks like a part of its legacy continues to live on in the M1. This controller has actually been used since at least the iPhone 4S and hasn't changed much since then."
https://lists.ozlabs.org/pipermail/linuxppc-dev/2021-September/234633.html