Depends on how one defines "win".

We coulda gotten more people here. Reddit's kind of the perfect centralized service to decentralize. Major subreddits have millions of subscribers and mods with years of experience managing large communities. Many of them could have set up their own Lemmy servers and just said "we're over here now". You get a few large, but still not exactly mainstream r/all kind of subreddits doing that, and things could've been significantly different.

At the same time, there are several ordres of magnitude more people here now than there was before, and the space isn't showing any signs of dying. That's kind of a big L for Reddit, as they're going to continue enshitifying themselves in the months and years ahead, and there's a legit, if somewhat underground, alternative space for people to go when they're finally fed up. Now with an insane amount of mobile app support, to boot.