While interesting the post is incredibly vague and jumps to conclusions that in my opinion other data can explan or at least requires further testing.
14th gen intel have "big" and "little" cores. Unless you specify to pin cores in the VM, if at any point the virtualization swaps cores then your X86 performance on Intel goes down the drain.
Also laptop perfomance is incredibly suspect. Not only does cooling, etc have huge effects, but Intel is clearly behind AMD since many years (14th gen is a refresh of an old architecture).