The fediverse is a marketing buzzword designed to sell fake p2p social media platforms.

Bluesky -> not actually properly disintermediated or federated. mastadon -> equally misleading.

Bluesky host and manage centralized infrastructure that would break the system if turned off.

If an owner of a mastadon server deletes their server all the connected users profiles get deleted too.

Hosting a website with an RSS feed is federated. It doesn't solve the problem of finding interesting RSS feeds unless maybe RSS aggregator feeds exist (which they probably do).