Microsoft confirmed today that it's not going to change the CPU requirements for Windows 11 for AMD Zen, or much for Intel 7th-gen.
If you recently bought the Surface Studio 2 with the i7-7820HQ you've been given a pass, but that's it. No AMD Zen 1 (and earlier) or any other Intel 7th gen (and earlier) CPUs will be supported.
I found the tidbit about kernal mode crashes interesting. Why would the piece of hardware matter?? Older CPU would just take more time. This is just Microsoft baking a low water mark into the OS. This equates to saying, "The hardware is fine but CPUs older than X are too slow FOR THE OPERATING SYSTEM'S EXPECTATIONS."