I was in a similar situation to you.
I would get the Z6iii first because it covers pretty much all your needs. The ZF is a nice personal fun camera and it's more than capable of being a back up camera for pros. However, the layout on this camera prevents it being A camera. It's best suited for walks around, short trips, personal projects and while on holiday.
The Z6iii on the other hand is a jack of all trades. It might not be as fun to use when compared to the Zf or has a high megapixel count like the the Z8. If you want an all rounder camera and can do wildlife photography, get this camera first!
The final thing, Nikon haven't released many compact lenses for the ZF to benefit from. There are other lens manufactures but it would be nice at some point Nikon release a compact tele and maybe ultra wide especially now they could use a modified ZR casing for a compact Z camera. Just my thoughts.
I would get the Z6iii first because it covers pretty much all your needs. The ZF is a nice personal fun camera and it's more than capable of being a back up camera for pros. However, the layout on this camera prevents it being A camera. It's best suited for walks around, short trips, personal projects and while on holiday.
The Z6iii on the other hand is a jack of all trades. It might not be as fun to use when compared to the Zf or has a high megapixel count like the the Z8. If you want an all rounder camera and can do wildlife photography, get this camera first!
The final thing, Nikon haven't released many compact lenses for the ZF to benefit from. There are other lens manufactures but it would be nice at some point Nikon release a compact tele and maybe ultra wide especially now they could use a modified ZR casing for a compact Z camera. Just my thoughts.