Yes, and it's still irrelevant to this community despite that fact.

Frankly, I don't see a point to even touching Bluesky. Threads has at least promised federation, Bluesky is just Jack Dorsey looking at Mastodon and going "yeah I want that but incompatible with everything else."

The instance is lemmy.world, the community is c/fediverse, while you can post whatever regardless of your instance, you can't post whatever you like into a community, you need to follow the rules and themes.

Communities are after all the equivalent of subreddits while instances are just serverd where accounts reside and communities are hosted.

You’ve entirely missed the point.