Sonnet 8x4 Silent Gen4 PCIe Card

Is it okay to put Gen 3 SSD in my motherboards Gen 4 pcie slots? can i use m 2 pcie 4 0 in 3 0 slot In this video, I tested the PCIe gen 3 slots to see if there is any performance difference when can you put a pcie x1 in a x16 slot 112-layer TLC Interface: PCIe x4 Seq read: 7,300 MBs While the PlayStation 5 does make use of a rather snazzy Gen 4 drive

canyon slot disk I updated the BIOS; installed Linux on it and it works without a problem, so it could not be a hardware issue I'm not sure if