Does SSD Card mess with PCI express?

An slot is a type of expansion slot found on modern motherboards that is primarily used for connecting solid-state drives

-Most laptops have a wifi card that uses an slot Is there any difference between this slot and slots meant for NVME drives? Can they also

m2 slot The Asus GeForce RTX 4060 Ti 8GB Dual OC + SSD Expansion slot does what it says on the

m2 pcie 40 in 30 slot Two NVMe SSD slots on a PCIe x8 card Silent operation Add your own ultra-fast SSDs for Mac, Windows, and Linux