It's tricky to try out since it's invitation-only. As far as I understand they want to focus more on long-form content and high-effort posting, so it's not really a Reddit alternative per se.

As for Lemmy is Fun, it doesn't look particularly likely, though talklittle (the dev) at least made a Lemmy account , so your prospects are at least better than fans of Baconreader. Maybe the future chances are at least non-zero, provided Lemmy continues to grow.

I wouldn't get my hopes up, though.