Fediverse (in the sense of the major servers that federate) is an extreme echo chamber representative of mainly a certain sociopolitical wing and mainly from North America and Western Europe. Just look at mastodon.social/explore and consider that many founding activists of Mastodon have spoken about how they yearn to keep the community just like that even as it grows.
Part of the early internet was about being able to find a huge range of different attitudes and beliefs, every possible politics, every possible religion. It was about being able to get a glimpse of non-Western cultures you might never have been able to learn about before. There is very little diversity in the fediverse.
People complain a lot about the internet getting worse and worse. We can fix it, if we put in the effort to rebuild it.
* Join fediverse services, e.g. [Lemmy](feddit.de) or Mastodon and post a bit.
* Create your own website if you have sth like a cool hobby to share. Webhosting is available for free or cheap, depending on what you want. Link other pages you like to form a net.
* If you can, host your own instances and federate.
* Look into alternative search engines like marginalia to find "small-web" content
* Talk to your friends to also make the move or at least look at alternatives to the large sites.
We can't just wait for the problem to fix itself, this is something where internet users have to become active. It won't solve itself.
EDIT: Commenters here are rightly saying that discoverability is a problem. Again, relying on search engines is required for productivity, but when we consider browsing for research or leisure, don't underestimate manually curated link pages. Webrings were a thing we might wanna consider again.