Will PCIe x1 x4 cards work in x16 slot?

ORICO PSM2-X16 is an NVME to PCI-E X16 Expansion in M-Key interface, support GEN3 X16 with hard drives of

The term “PCIe card” and “expansion card To maximize efficiency, high-performance devices tend to rely on PCIe x16 almost exclusively

pcie 3 slot  MAIWO KT058 NVME SSD Adapter Expansion Card, NVMe to PCIe X4 X8 X16 Slot Quad NVMe to PCIe 16x Adapter, RIITOP 4 Port NVMe SSD Slot

pcie 4 in pcie 3 slot ssd A motherboard has a PCIe x16 expansion slot Which PCIe adapter will fit in this slot? [x1 x2