not exactly, the idea is to have a normal cpu like arm or x86 but the kernel doesn't ever deal with native binaries, only web assembly, and the performance pena

not exactly, the idea is to have a normal cpu like arm or x86 but the kernel doesn't ever deal with native binaries, only web assembly, and the performance penalty of running stuff in a VM gets offset by disabling memory protection and its performance penalty, since memory protection is already guaranteed by the VM.