I'm wondering how that NVME will work. The big push of the PS5 was that those built-in SSDs push a huge amount of data with their custom storage controller, allowing loading of assets in read time during gameplay.

I'm guessing the NVME will be for storing some game assets it can swap out for less frequently played games; but that data would still need to be transferred back to the onboard SSD when the game is loaded back up?