> when i check the specs, it is obvious that PPC is dead

Huh? From the specs of one specific, low-cost and low-power PPC chip that just became available you conclude that the whole architecture is dead? Could you please explain that miraculous deduction?

> as it turned into low end cheap cpu/socs you could use in
> cars, fridges and washing machines.

That's where PPC has been for ages, while at the same time being also available for more performance demanding domains.