In my Trek novels, to rationalize the gravity somehow not reaching to higher decks or outside the ship, I rationalized as the result of the grav plates producing virtual gravitons that decayed after traveling a few meters. I may have also said they're polarized to explain why their effects aren't felt off to the sides.
Still, I would've liked to see a more plausible approach to artificial gravity somewhere. One ship design I came up with once, in my own original SF worldbuilding before my Trek novel career, was built around a cylindrical engine core whose FTL drive leaked gravity.
Your Hub series?
Enterprise wanted it both ways: they got to be a prequel, so their crew would be the first at everything, but then they wanted all the technology and goodies from Star Trek's future at their disposal, so there was nothing they couldn't see or do. Galaxy Quest and The Orville could blaze their own trails, but Enterprise kept dipping its quill into somebody else's inkwell.