I've already seen that. It's a comparison between an old spinner hard drive and the new Series X NVME SSD.
My post above was about there being little or no real world difference between a PCIE 3 level NVME SSD and a PCIE 4 level NVME SSD. This holds true for pretty much everything except specific sustained sequential workloads that you'll never see with gaming.
It's a no-brainer for both next gen consoles to include NVME SSD's. I just think Sony's choice to go with one as fast as that wasn't the wisest decision.