What kind of expansion slot should you use for your video card?

Some low-budget computers are sold with integrated video and have neither a PCI-Express x16 slot or an AGP slot With that kind of computer you're stuck using a

It is compact in size and has two Type-C interfaces and a PCIe x16 card slot on board Equipped with the sixth-generation Intel Thunderbolt JHL6340 main control

pcie slot splitter PCI Express Expansion · Five PCIe Gen 4 x16 Slots One PCIe x16 Slot for Target Cable Adapter; Four PCIe x16 Slots for Add-in Card · ATX

pcie slot configuration gen1 gen2 gen3 expansion slots from ISA to PCIe The video I mention at the end about PC motherboards is