The extra best case scenario read performance of PCIe 4.0 is nice but for the average Joe/Jane we really need better underlying storage tech to improve worst case performance (4KQ1T1 read).

Yeah, and i would like to see the speeds after all those caches are filled..

Now 7GB/sec read speed is more like it not the small bump from 3.5GB/sec to 5GB/sec for PCIe 4.0. Need faster speeds normally it means little to games but modding out rougetech for Battletech which has to uncompress files and preload takes a while for the game to launch, NVMe takes around 40 seconds, SSD about 1+ minute and a HDD just forget about it that can take 10+ minutes