> interestingly nobody of my audience went off X to mastodon

Did you really expect otherwise? A niche platform only cared for by a niche of a niche of a community?

When X has 500million users and Mastodon 10million. 400m monthly daily users verses 100,000. Tens of millions of app downloads vs not even 250k total...

I just don't see it. Even just raw numbers and probabilities it would be unlikely