It has more to do with implemented compatibility I’d day.
It’s clear that once Kbin has a public API, many lemmy apps will probably offer compatibility, like Sync for example.
Artemis is the other way around, it’s being developed for kbin, and it will add Lemmy compatibility down the line.
I imagine eventually the kbin apps will flesh out the microblogging aspect of it as well and allow better interface with mastodon.
Kbin is a different software than Lemmy, although similar.
It has only been around a few months (unlike lemmy that has years in development).
It offers what seems to me a more centralized view of the fediverse, with federation to lemmy servers and mastodon servers as well.
It has access to the microblogging feature, that is like sending a toot from mastodon.
I’ve found it to be a more familiar experience to Reddit, and honestly, I prefer it over lemmy.
Due to it being so new, it has many missing features lemmy might have, like mobile apps (the API is still not public, and it’s being worked on).
HOWEVER, Kbin has a great community backing it up.
I’m currently posting this from the amazing Artemis beta app for Kbin, the first of its kind.
This is due to the incredible job @Hariette has done!!