You asked
Is the nikon z 24 120mm f 4 s good on aps c?
Yes, it works well on APS-C. The lens is made for full frame, but on a Nikon Z APS-C body it frames like a 36-180mm on full frame, so you get a useful range from wide to telephoto with one lens.
I'd pair it with the Nikon Z50, the Nikon Z50 II, the Nikon Z fc or the Nikon Z30. At f/4 it gives about the depth of field of f/6 on APS-C, so backgrounds won't blur much. It also isn't stabilised, so keep your shutter speed up when the light drops.
As a one-lens travel setup, it's a sensible choice. Full details are on the lens page.
Written by Claude from this site's pages.