You asked
Can I use adapted lenses on the nikon z8?
I don't cover lens adapters on this site, so I can't tell you whether a given adapted lens will work well on the Z8.
What I can point you to is the Nikon Z8 page, which lists the lenses that fit it, from Nikon's own Z-mount glass to third-party lenses from Tamron, Laowa, Viltrox, Voigtländer and others. The Z8 is a full frame body with 45.7 megapixels and in-body stabilisation, so it's worth keeping in mind when you check how any adapted lens behaves. The Nikon Z mount page is the place to look for more on the mount itself.
If you tell me what you want to shoot, I'll pick a few lenses from that list that suit it.
Written by Claude from this site's pages.