RSS is more than twenty years old, and it still does exactly one thing well: it tells you when a site you care about has published something new.
What you get
- No algorithm deciding what you see.
- No infinite scroll and no engagement metrics.
- Just new posts, from sources you chose, in the order they were published.
Every reader works with every feed, and you can switch readers without asking anyone's permission. That kind of portability is rare on today's web.