[toni-a]

To be fair.. at the moment, not only Nikon can't do right, in the eyes of the internet forum-public.

Nikon: a big FF mount, which makes for a big APS-C camera line as afterthought.
Canon: the "bigger" FF flange distance prohibits the APS-C mirrorless lenses to ever work (sensibly) on their FF RF mount. The smaller mount diameter for EF-M means there never can be a RF lens adapter for it, also the much more advanced lens communications for RF would prohibit "backward compatibility".
Sony: their small mount diameter limits lens design freedom somewhat compared to Canon RF and Nikon Z.
Panasonic: like Canon, no compatibility between MTF and FF L-mount what so ever.
Fuji: Their APS-C X-mount is so small that they can't even dream of going the FF route with it, ever. Their cropped MF format has no connection to their APS-C line either.

Darwin said it's not the strongest species not even the smartest that will rule, but those capable to adapt, same applies to the changing world of photography.... Nobody wants to be the new Kodak... Yet some are following its footsteps...