I am not aware of such a guide. So let us make one here!
The Z-mount bodies share the ergonomics that endeared us to their F-mount brethren. Or frustrated us, in Paul's case. That part of the transition is easy.
The big difference is the electronic viewfinder. I started as one who detested the idea but now love it. In good light you might not notice the difference. In bad light you will be able to see better.
There are various options but I like the one that gives preference to the viewfinder. It behaves much like a DSLR but, when you want to review something on the rear screen, you can look into the viewfinder and see it there. As one coming to terms with presbyopia, I like being able to see menus or photographs taken without having to resort to my reading glasses.
Manual focus is now so much easier. There is no more peering at small, dark screens that are ill-suited to the task. The buttons for zooming in or out work but are not convenient. So assign the task to the button of your choice. (I use the video recording button generally. When going out with manual lenses, I re-assign the AF-ON button to 100% zoom and the FN-2 button to selecting the programmed manual lens.)
As a former computer instructor would say, the big piss-off is that the square showing the focusing are does not turn green when focus is achieved unless one is using a lens with a chip. Otherwise one is restricted to zooming in to the area under the square. I see no reason for this restriction. On the other hand, it generally works better than with a DSLR.
If you want to use off-camera flash then set the viewfinder to disregard the "LiveView" settings. This makes it mimic an optical viewfinder. Otherwise it would try to show the scene according to your settings, which would probably be a bit darker than you had in mind.
The Z-mount enjoys a very short register. (My apologies if that is the wrong term for the distance from the mount to the sensor.) So one can adapt just about any lens. The trick is to buy a good adapter. I followed Akira's advice and bought one from Rayqual. It is very, very impressive.
Battery life is a bit shorter compared with your DSLR habits but not terribly so.
Autofocus has some different quirks. My guide there was Thom Hogan. Nothing earth-shattering but you should practice and not be discouraged.
Mine is a Z6. The limiting factor is definitely the photographer
The files are gorgeous in post-processing!