Between the large swaths of rewilded land in Fully Automated’s setting (which is protected from any permanent development/dwelings) and the general availability of high tech stuff, I could totally see slow, wandering, nomadic houses being a thing (for good or ill, depending on who in the setting you ask).
Yeah, similarly, I don’t see it as terribly practical, but it does feel like something that would fit the setting’s high tech, endless Saturday. I could picture hermit-ish nomad types on a long term camping trip who like knowing they’ll wake up a mile down the road, or just someone trying to get around the 'no permanent structures ’ criteria in a beautiful spot by having it take one step every two weeks.
I think these things have potential for drama and disagreement, which might make them useful to DMs. You could build a story around a convoy of them and the locals trying to stop or divert it, or a mystery around why they keep falling into this one canal. Or it could just be neat flavor text for a character they interact with.