Kendryte K210 is designed for FreeRTOS[0] and other embedded OSes.
Complaining that it doesn't support Linux is like complaining that a Honda Civic can't compete in Formula One.
Complaining that it doesn't support Linux is like complaining that a Honda Civic can't compete in Formula One.
It's the lack of full MMU that's the actual reason, it keeps the chip firmly in the microcontroller domain.