

Sure, but the wii’s coprocessor’s os was also unix/bsd based and that was nowhere near pc hardware. Actually, a few embedded devices (cheap routers, cheap toys,… ) use bsd (while they should run linux hehe) and are nowhere near pc architecture :p.
What makes a pc a pc is the actual hardware layout, hardware connections internally and how it boots. Im looking deep into ps4 and i can see why people call it a pc, but its a huge misnomer. If a ps4 is a pc, a raspberry pi( or any random sbc ) is also a pc because it has a usb or sata controller, cpu and pci bus while it has no pch/fch, no pc bios (which i can accept to not be relevant) or any of the pc hardware you cant think off ( spoiler, its a lot more ).
Hell, pc’s dont even have a southbridge anymore. We have the pch which is directly connected to the cpu over a bus that is nowhere near the old northbridge/southbridge design…
Fugaku is not a pc. Its a computer, but not a pc. Its a supercomputer :)
Its a slippery slope, yes, but its one that separates a personal computer from any other device that just happens to compute something.
I get the point though, what makes the arm ampere system a pc and the phone in your hand not? It both has a arm cpu and hardware connections after all :)
Same arguments count towards the playstation or other consoles