Excuse my ignorance but what is AVX-512 even supposed to improve? I’ve been hearing about this instruction set since around 2015 and I have yet to hear or see any significant use case for these instructions.
Some crypto miners use it instead of dedicated Asics, its intense cpu processing but at the expense of everything else running through the cpu, its a cludge but Intel have said they are looking at dedicated crypto mining cpu's to maybe get in on the inflated GPU price tags people currently see. I read somewhere Nvidia have even added some features which prevents their GPU's from being used for mining.
AVX-512 is possibly a go-to place for stealth crypto mining for some hackers in server farms.