The thing is: the bits to check for SSE, SSE2, ..., AVX, AVX2, AVX-512? They're in the same spot on Intel and AMD CPUs. So you don't need to switch based on manufacturer. The fact that they force a `GenuineIntel` check makes it seems malicious to many.
All browsers pretend to be MSIE (and all compilers pretend to be GCC). You'd think AMD would make it trivial to change the vendor ID string to GenuineIntel for "compatibility".
