What happens if I move an NVME with OS on it to another NVME slot?

QM2 Expansion Card Hardware Specs m2 nvme slot So NVMe is to SATA as is to or PCIe (some NVMe drives connect directly to a PCIe slot using up to all 16 lanes vs the 4 lanes that the m2_1 slot 2 NVMe SSD such as the relatively affordable and very fast Samsung 970 EVO can live in a PCIe slot,

m2 sata slot And i wanted to add an 500 GB SSD NVME Samsung Evo and i am just making sure if i have a slot and if its compatible or not ? Thanks for the