I've seen I think a single one of the RimWorld endings and honestly "beating the game" is so not interesting to me at this point after hundreds of hours played.
Starting up new colonies and getting established to the point of "yeah I can handle all the raids thrown at me at this point" is when I move on to start a new colony with a new religion/race/theme. Actually going from "solidly established colony" to "you win!" credits is I think the weakest part of RimWorld, although I haven't tried being a nomad yet which has what sounds like a way more interesting path all the way through to the victory screen.
Yes, and one of the victory conditions is to make it to a far away tile to hitch a ride with a ship. Well suited for a nomadic play style.
It's supposed to be a pretty solid way to play as you're never that worried about raids and are consistently hitting up ancient dangers for high-end gear.
One of the self-imposed play styles I've seen in youtube playthroughs is more of a band of mercenaries or bandits. They go from one settlement to another raiding the bases there and only survive on what they can steal. They basically ignore the colony management and base building aspects of the game and focus on building a team of absolute combat monsters all addicted to luciferium.
