What happens if you use a PCIe NVMe SSD in a PCIe

PCIe x4 SSD on PCIe slots, what would I expect? nvme pcie 4 0 in 3 0 slot For example, most SSDs come in the NVMe form factor, which means they only have access to four lanes At PCIe speeds, that's 8GBs of constant data nvme in pcie slot 2 Slot is from the Ryzen 7 5700G then it will only support PCIe Found this tech site that explains that a Motherboard can have both PCIe and slots

nvme vs m2 slot With options for 1x, 2x, 4x, 8x, and 16x slot configurations, PCI Express doubles the speed of PCI Express , increasing performance from