I’m not sure I completely understand the differences. Are they seperate or somehow connected?
Also I’ve read you can view kbin instances on Lemmy somehow. How does that work if they’re two different things?
I’m using Liftoff is it somehow possible to view kbin instances on there?
They are two disparate software that both work on the ActivityPub platform.
Lemmy is a thread aggregator(like reddit) only, where kbin does thread aggregation and microblogging(Like Mastodon).
Both software federates with others, so you can see lemmy communities on kbin, and you can see kbin magazines on lemmy.
So will posts in a kbin magazine also appear on the lemmy front page? Or do I have to specifically seek them out and subscribe to them for them to appear in my subscribed feed?
If your instance already discovered then, then they should be available in all feed. If you subscribed to them, then they should also be in subscribed feed.
Yes, and visa-versa
I think by default you don’t see the domains of the instances & users, but at least for kbin there’s userscripts that enable them, making it easier to differentiate where a user or community / magazine comes from. Generally though, as long as your instance hasn’t defederated from the kbin instances, the threads should just appear like all the other instances.