No, Intel support for PCIe 4 started with their generation 11 CPUs. I believe you have a gen 9 CPU. If you install an SSD with PCIe 4 capabilities it will still work in your system as they are backward compatible. But they are more expensive and there is no point unless you are going to upgrade your system in the future to one that has PCIe 4 capabilities.
I have the Dell G5 5090 - 0DXJD9 motherboard and I want to change the SSD M.2 NVMe PCle 3.0 to one with PCLe 4.0. Does my motherboard support PCLe 4.0?
PCLe 4.0