Why does overview at login offend you?
There's at least a speech or post somewhere where the design is explained, and once I read it, I understood it more. It boils down to: there's no reason to be on the desktop page when no window is open. And the first thing you will do when logging in is to open a window, e.g. by taping on a pinned icon. Once I understood that there is a productivity increase, I liked it. Prior to that I even used dash to dock because I didn't understood GNOME's workflow. As soon as I understood that there's a broader concept behind it, which I didn't know back then, I stopped using it. Since using PaperWM, an extension that enables sliding tiling, extensions like dash to dock hindered my workflow because they don't make sense.