Is there any benefit to putting a PCIe 4 SSD in a PCIe 3 slot?

NVME SSD to PCIe Adapter Card 64Gbps M-Key pci 4 ssd in pci 3 slot My first real PC was a Pentium III Slot 1 system pci 4 ssd in pci 3 slot My laptop has a gen 3 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

pci slot 1 2 que se instalaban en PCI-Express buscaban sobrepasar los límites de la interfaz SATA y se conectaban a través de una tarjeta, ¡no había slot M