Nikon lenses are separated by their lens mount type, either F-mount or Z-mount.
F-mount lenses are designed for use with Nikon’s range of DSLRs like the Nikon D780 and Nikon D850.
Z-mount lenses are designed for use with Nikon Z-series mirrorless cameras which are much more advanced and these lenses are designed to optimize performance with a Z-mount camera like the Nikon Z8 or Nikon Z9. These lenses are often part of the S-line range, which offers a more robust build, a stepping motor for quiet autofocus and premium optics with more advanced glass construction and coatings.