PCIE GPU on PCIE MOBO

RTX 3080 on a PCIE board? Good or bad idea? pcie 2 0 x16 slot It doesn't matter the PCIe generation, as long as there is a PCIe x16 slot, the GPU will work in the slot From that point on, the GPU just pcie 4 in pcie 3 slot Hi, i recently bought a new computer and plan on getting a new graphics card, but the motherboard has two types of PCIe x16 slots,

pcie x1 slot function PCIe x16 vs Tested in Middle Earth- Shadow of War, Witcher 3, Assassin's Creed