Is it okay to use PCI Gen 4 drives with gen 3 slots?

Questions about buying a gen 4 SSD NVMe for your Gen 3 laptop? Gen 3 or Gen 4 SSD is

The one where there was a Boot Drive, is actually Gen3 slot I thought that he installed on the secondary slot The terminology is, in the

willy wonka slot machine This arrangement enables NVMe to offer almost four times the IO and ten times the seek time NVMe drives are so much faster than SATA drives

willis creek slot canyon Yes, If you motherboard Slot supports PCIe from the chipset then your SSD will work with PCIe But if the Slot is from the Ryzen 7