Does federation have a bit of a learning curve? No doubt.
Is Lemmy buggy as heck? Absolutely.
But I don’t think that really justifies a lot of the comments I’m seeing in Reddit alternatives threads that it’s hard to figure out. The front page feed and sort options are very similar to Reddit. Searching for same-instance communities is not too difficult. Posting, commenting, and voting are all quite intuitive. What’s the problem?
Just be careful. That only works because your instance already knows about those other instances because someone already interacted with them. If you ever want to join a community on a non-popular instance, you might have to be the first person to search for it by copying and pasting.