Love nature & nature loves you back
Same here I hardly touched D 850.How ever I had to use today D 850 with 85 mm for my sister's German shepherd indoor dog shoot since I have only 200 600 for the A1.While I got pretty good shots I did miss the Animal Eye AF of A1you are spot on. The more we use those cameras the more we find their weaknesses and they do have some. But I keep going back and forth, A1 / D850 and going to the D850 is getting harder every time.
It a blend of the responsiveness of the A1, the benefits of EVF, what I personally find a more reliable AF and much more comfortable ergonomics (again very personal). The only reasons I grab the d850 anymore is because I dont have many Sony lenses, otherwise I wouldn’t grab it at all.
But to your point, it’s very different from saying the A1 is flawless.