Yes, it will take an NVMe M.2 drive.  That said, if your system doesn't currently have one, open it and check -- a mounting plate and screw are required to secure the drive.  That hardware may not be present in systems that ship without an M.2 drive

Service manual:

https://www.dell.com/support/home/en-us/product-support/product/g-series-17-3779-laptop/docs