I think it'd be great for more decentralized platforms to supplant centralized ones, but they usually seem to struggle to acquire more mainstream users. Even if Twitter collapses under Musk's leadership, my hunch is that a (new?) centralized competitor is more likely to take most of their market share, rather than Mastodon.

I know, I know, there's some obvious exceptions like email, or just the web in general, but it seems like usually decentralized platforms are at a disadvantage in terms of marketing to new users, explaining how they work, and the whole onboarding experience. The very fact that they can work in different ways to different people seems like a minus in terms of getting into the public consciousness.