Will a PCIe Nvme work on a PCIe motherboard?

PCIe vs PCIe GPU Benchmark nvme pcie 4 0 in 3 0 slot Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? Section Link A PCIe NVMe SSD will work in a PCIe motherboard slot at PCIe nvme pcie 40 in 30 slot First of all, I know that a PCIe 4 SSD NVMe will be running at gen 3 speeds and bottlenecked by the PCIe 3 slot But I'm wondering if there are

nvme slot SSD, Support PCIe x4 x8 x16 Slot 256 MB GDDR5 Graphics Card 877 ₹599 31 NVME SSD PCI-e x 4 Host Control 1 GB DDR3 Graphics Card 1,028 ₹559 45