There is FTL, which is accomplished by creating a field around the ship and jumping point to point. It's not unlimited, as there are certain points that can only be accessed from certain other points. Not to get too down that path but it's very ley line and new age crystal kind of logic there.

However, the colony ships themselves arent independently capable of FTL. They are slaved to an FTL capable tug ship and transported to their destination. This is done on a contract. Colony ships are built to order, almost always as part of a larger colony contract that includes initial survey, customized colony ship modifications, transport to the planet, landing the colony ship, and setting it up.

There are living quarters, however those are mainly meant to be used once the ship is landed. The ship is skeleton crewed by contractors (usually from the same company supplying the FTL tug ship) during transit. The contractors specialize in these jobs so they land the colony ship. The actual colonists, along with more contractors, are passengers on the tug ship. They come down to the surface after the colony ship has landed. There is an initial period where the contractors help with initial colony set up, such as detaching the colony ship main engines, adjusting how the ship sits on the ground, securing anchoring, and other tasks. The colonists while usually containing some flight certified members and mechanical engineers are not subject experts on landing colonies or setting them up.

This was definitely a spur of the moment sketch to get the idea on paper, and as such I'm already looking at making changes.

The biggest change is removing those main thrusters entirely. Those were meant to maneuver in space, but with the colony being slaved to an FTL ship, they are unneeded. This leans the colony as being less of a spaceship and more of a space capable building.

Removing those main thrusters from the colony ship itself means I have to think about how to get it to descend. I'm considering some kind of array of thrusters outside the wall which can be recovered after landing (I want every piece of the design to either be used by the colony or recovered for reuse by the transit company.) Combined with some kind of anti-gravity tech which can kick in once the colony is descending slowly enough and is near enough to the ground. I'll keep workshopping that.

For the quarters, I envision the ones on the main structure to be duty quarters that may also double as emergency quarters during some extreme emergency. Day to day, they'd be where the people most expected to work in the structure would live. I picture this colony ship as supporting 20-50 people rather than a huge population, at least at the beginning.