The Mastodon experience has its own major issues - being forced back to the top of my replies every time I comment on one is such a headache, the fact that on a desktop there's an almost comically bad keyboard lag (at least, for me), finding accounts to follow could be a lot easier, we need more content creators, etc.
But the lack of a dictatorial algorithm helps a lot. I'm hoping that long after Threads comes and goes the Fediverse will remain.