Sure. But if google gets the Linux kernel inside android to run well on Risc-V, that's going to be a large fraction of the work required to get Linux running.

Sure. But if google gets the Linux kernel inside android to run well on Risc-V, that's going to be a large fraction of the work required to get Linux running. Not a ton architecture specific code in user space, especially since things like gcc, glibc, and friends are already ported.