The intel drivers are mostly written by intel engineers, same for AMD drivers. I just checked on my works laptop, the only non intel component appearing via ls

The intel drivers are mostly written by intel engineers, same for AMD drivers. I just checked on my works laptop, the only non intel component appearing via lspci is a realtek express card reader whose driver is copyrighted by Realtek Semiconductor Corp: https://github.com/torvalds/linux/blob/master/drivers/misc/cardreader/rtsx_pcr.c https://github.com/torvalds/linux/blob/master/drivers/misc/c... Have Apple engineers written a single line of code for linux drivers supporting apple silicium ?