PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs?

PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs? pcie 4 m 2 in pcie 3 slot Gen 4 is faster than Gen 3 pcie slot function 3 Best 2TB+; 4 Best for Steam Deck; 5 Best for PS5; 6 Best PCIe 5; 7 How to spot the best deals

pciex16 slot configuration Hi all, I'm looking for a second NVMe to expand my gaming laptop's storage It will be used only for games, maybe the occasional movie file