Update:
LR applies the right profile, but when using the Z camera you cannot choose not to apply it even if it is an G lens with the adapter attached.
If the lens is from another manufacturer- say Sigma-then there is no profile applied.
I have a Nikkor fisheye that is made for DX format.
When combined with the Z7 and the adapter; LR applies the lensprofile and cuts the photo to DX format- if you want it or not.
In this case it also means that when i use the fisheye lens on a Z7 and a D850 i cannot get the same photo out of it.
Unwanted behaviour that LR should address as other raw converters do not have this problem.