Earlier quoted context omitted.
Broadcom is selling hardware with the intention to run Linux on it, I guess that is the main difference.
Apple unlocked the bootloader which is certainly signaling intent.
It does work out for Apple in the end. Their current standard 10 years' support will look quite short now Moore's law is dead and their hardware has barely any moving parts. But they'll shush some complaints if up to date third party OSes are available in 2030.