I've seen anecdotal evidence suggesting a bit of a migration back to #twitter. Organizations (Mozilla, prominently) and individuals whom I respect that previously left for the #fediverse and/or #bluesky are have announced a return to the platform in recent days/weeks. I cannot explain it, but they seem to suggest that the people they want to reach or with whom they want to engage are there.
I am disappointed. But what else is new. 🙁