If what you mean by centralized apps is apps having a default website, or a hard-coded website that it accesses, then that’s also going to lead to centralizing the website.

The fediverse is just the web. It’s not really suited to an app-first model of operation. Like, imagine having a blog-viewer app that only let you read one blog. We see this kind of behaviour from the business world, and people kind of hate it.

The only reason it would be different here is if the network collapses, and if it does, it’s going to collapse into lemmy.world.

Which, apparently, is a “deal breaker”.