.... The randomness falls on the OS's ability to gather these, not the CPU.
Minor nitpick but it should be 'The randomness falls on the OS's ability to gather these
AND USE THEM PROPERLY, not the CPUThere have been a few times when programmers screwed it up and took totally random, non duplicate entropy and gave bad randomness but to bad programming. We have to trust that they did it right, but have seen many times though the decades of computing that they did non.
https://www.wired.com/2017/02/russians-engineer-brilliant-slot-machine-cheat-casinos-no-fix/-Dave