A lot of people talking about how Mastodon isn't ready to replace twitter.
I sign up to new social networks all the time... Ello, Peach, Meerkat, Clubhouse, Vine, and dozens of Slacks and Discords... most of these failed or didn't grow but they were fun and different with new people and new ways of interaction.
I signed up to Mastodon years ago and it's one of the few that is still here chugging along.
Maybe it's not for you, but stop declaring it doomed. Lots of people like it and that's ok.