So how does TL13 cloning change the society from a TL12 one?
Do people own clones?
Are clones used in place of robots?
Are clones harvested for organ replacement?
I'd take twins as a jumping off point. One, identical twins more often than not like each other, and like spending time around each other. You'd probably see most clone lines looking at each other as younger/older siblings, and generally looking out for each other. Or sometimes parents cloning themselves to have children, so a parent-child relationship with maybe a dose of narcissism in some of those.
Two, identical twins separated at birth end up in the same careers, not all the time but much more often than they should by random chance. So there's evidently some genetic factor to career choice or career success. I can easily see clone lines getting typecast, perhaps correctly, into certain jobs. After the first few have some success in something whoever's doing the hiring might take notice, and the first in could act as mentors for the rest. So you could end up with firefighter models, ship's engineer models, surgeon models and more, even without them all being deliberately engineered for it.
Then, are we talking about cloning being very common but a lot of one offs, or a runaway effect of a few large clone lines all making clones of themselves? If the latter, personality types would probably become common knowledge. Stereotypes, but true and useful ones, if occasionally still taken too far.
I think clones would have full human rights, at least nominally. By the time you get full cloning without errors (the without errors part is the part that's surprisingly hard today, otherwise we'd have it), you've already had in vitro fertilization, genetic checking for errors, probably genetic editing for errors or for desired traits. And the first people likely to clone are likely to consider themselves "parents."
Underground and illegally, organ harvesting would still be tempting. Perhaps followed later by full on,
I Will Fear No Evil brain transplants. Who doesn't want to live forever? Might be an adventure seed in that, get hired to rescue someone or break up an operation.
As for TL 9 flying cities? The gravitics are not stable enough, reliable enough, durable enough, or some other key metric enough.
Except for the expense of getting there and setting up, we've got the tech to build floating cities on Venus today. A dirigible filled with a breathable nitrogen-oxygen mix will float at a manageable temperature and pressure, and get almost as good atmospheric protection from radiation as we do on earth. Make it large enough and live on the bottom, probably with engines and equipment underneath for ballast, and you're good. It also needs sealed against sulfuric acid, but that's doable as well. All elements required for agriculture are available in the atmosphere, so they could be self-sustaining without trying to get to the surface. No gravitics required.
Of course it's not clear what else they'd do besides be self-sustaining. So taking tech level as "this is what's cheap, easy and practical" you might be right.
Still, I like knowing about things like this for world building. I can easily see a higher TL culture planting some non-gravitic floating cities in dense atmosphere planets, either for robustness if the supporting supply chain is broken, to be cheap while establishing a claim, or because it's some private breakaway group doing it out of their own pocket.
