I thought my post might be a little contentious. I can see how "fitting in with.. current gear" is a major plus point for many. Kudos to Nikon for the smart move of one mount for all Z bodies making it easier to trade up (sic) to full frame without having to to ditch any glass.
A friend kindly lent me his A7ii and a few lenses earlier in the year and my wrists still ache. Nice but too big and heavy, also IMO unbalanced when fitted with a heavy lens i.e. any Sony lens.
Having just watched Jared Polin's preview, the Z50's tempting. Pity the ZTF adapter isn't included with the two lens kit.
While i will probaly get the adapter at sometime i felt the launch offer with the two lenses was too good to miss, i have no interest in full frame, tried a D750 for a few months, great camera but i was cropping most shots in PP.