There are a few places they talk about specific instances of how Gravity on particular ships works.
Aboard the circulars, large “compartments” are built with spin gravity sections while other parts are left in free-fall. I initially thought that circulars might use just endless thrust to create directional simulated gravity, but can’t see space-trains doing a flip-and-burn without a lot of passengers being hurt. I think one of the preview adventures covers how gravity on a circular works… the one where you have to sneak on board a Remora.
Back when the GMG was being put together I asked about Artificial Gravity and gave some examples, Lloyd gave a response…
The Dolly Dagger likely uses one of the Gravitational systems described below. Inconsistent power would cause gravity to malfunction. We did ask Gutier directly about A.G. when writing up ships initially
Some vessels resolve the issue at least partially by orienting their decks so that the ship’s engines are beneath their feet, so that when the ship moves, its acceleration serves as a substitute for gravity. Other vessels use centrifugal force, generated by rotating the ship along its axis, to replicate gravity. Others still use diamagnetism to simulate a gravitational force, though typically at less than 1g due to power consumption. These solutions don’t work equally for all ships in all circumstances, however, so the search for a better solution continues.
So given the Dolly Dagger is a super-spy/O-12 ship it probably uses Diamagnetism in combination with Thrust generating gravity. Given the scenes in the Manga and the Druze Caravansary seems to use Grav-plating… but it looks like it all misaligned pointing all over the place and large section of that station also appear open to vacuum yet filled with breathable atmo… so I dunno what’s going on there.
As for the Nomad Motherships, in the Nomad sourcebook they talk about people having to spend time in G-Zone’s regularly and how some of those places are essentially just gymnasium, but other areas are setup to spin and provide simulated gravity in excess of the minimal gravity caused by ship thrust. Vast sections of the ships are probably in free-fall often.
And I otherwise assume given the nature of Nomad’s everyone gets around with mag-shoes or something able to allow limited normality when walking through a ZeeGee area (combo with lot’s of hair gel and you probably dont see much difference)