that's nice, there's no x4 pcie5 for any cpu
alder lake has x16 pcie5 on the GPU side, but not sure it's worth dropping to x8 just to run 1 nvme at pcie5 and that's mostly on crazy expensive boards
This device could be great for PCIE4 since you'll be at max read/write vs current PCIE4 which may not reach max bandwidth.
But in all honesty, pc games are starting to approach some crazy sizes, like 200gb+ call of duty . Some other games, 40gb,60gb,80gb... etc
My last storage purchase was not nvme or sata ssd.
I went back to hdd, 12TB and does 200Mb/s+ which for games I can't tell the different vs my pcie4 nvme and no clean-up required for managing game installs