Intel is x86(_64) as well, mostly (rumors of plans to make an ARM competitor to Nvida and Apple).
And yes, not being able to make your own M2 computer does make the chip less open.
Open-ness is a scale, and if you're going to call something "open-source hardware" you should be able to source the hardware entirely yourself. Not being able to do that is closed hardware.
And yes, not being able to make your own M2 computer does make the chip less open.
Open-ness is a scale, and if you're going to call something "open-source hardware" you should be able to source the hardware entirely yourself. Not being able to do that is closed hardware.
EDIT: clarified the "mostly"