Does it really matter if I use an NVME SSD GEN 3 or GEN 4?

Looking at Amazon there is PCIe Gen 3 NVME and PCIe Gen 4 NVME for sale slot using PCIe bifurcation: Set this up from Linux when BIOS does

Your notebook's NVMe slot is only PCIe Gen 3, so a PCIe Gen 4 SSD is only going to run at the Gen 3 speed, and not reach its advertised

candy island princess slot Gen 4 NVMe SSD in a Gen 3 Laptop I use my XPS 9570 with a Samsung 970 Evo Gen 3

can you put a pcie x4 in a x16 slot Does a nvme gen 4 work in a gen 3 slot? Buying a gen 4 since it is backwards compatible and I can use it in future in case mobo upgrades to