PCIe vs PCIe : What's the difference?

In this video, I tested the PCIe gen 3 slots to see if there is any performance difference when

PCIe doubles the throughput rate per lane, giving users a transfer rate of up to 64GBs Why does this matter? The faster the throughput

pcie slot height obviously, a pcie 4 NVMe drive will get maximum performance in a pcie 4 slot, but I'm trying to get a sense of how the latest drives

pcie slot pinout Dell said that Optiplex 3060's slot has PCIe x4 speed in it's manual , but ironically, many users reported that they