We call them RSS feeds, RSS reader apps even if it might be implemented as an Atom feed.
I'm not too serious here but even many news media publications are just dropping it, or separate into dozens of unconnected feeds.
While RSS is tricky to parse in practice, many of the challenges are due to invalid feeds, which Atom is not invulnerable to. Its very likely that there is a well-tested feed parser for your favorite programming language, so most developers using feed programmatically don't need to handle those challenges themselves.
For concerns like title encoding or summary vs full text description, you can handle those using namespaces. If you don't like any of the existing namespaces that do that you can create your own.