So why doesn't my PCIe x4 slot work with graphics cards?

So why doesn't my PCIe x4 slot work with graphics cards? pcie slot gpu I wanted to put my graphics card on the second PCIe slot of my Asus Rog Strix-F x470 Reviewing video guides, it seems that people pcie 20 x1 slot Buy 2 pcs PCI Express 16x Socket GPU Slot PCIe x16 164 Pin Straddle Mount PCB Slide Lock Female Vertical Dual Row PCI-164P at Aliexpress for

pcie 20 x1 slot If PCI_E4 is truly a x1 slot, then to upgrade the GPU I'd likely have to sacrifice my 10Gbps NIC or buy another

pcie 30 x1 slot While it is technically possible to use a graphics card in a PCIe x8 or x4 slot, it is not recommended for optimal performance The reduced bandwidth of these For optimal GPU performance, use a PCIe x16 slot, as other slots can limit data transfer and graphics capabilities