Ive been using lemmy since the API shenanigans from Reddit and, apart from the not so smooth onboarding (a problem with all Fediverse applications) the experience is pretty similar to Reddit, only lacking the volume.

Since Reddit is following the enshittification path to try to pump up its valuation (ex: forced push to app use) I imagine that Lemmy will continue its slow organic growth until it hits critical mass. Hopefully all reddit investors would have exited until then...