After browsing for a few minutes I found that it really needs to have some kind of filter mechanism. For example, on old.reddit.com each post has its individual feed, while on blogspot you have both RSS and Atom feed.
The "calm tech" concept works really well with the fediverse identities because it's such a niche concept that at the end of a day of browsing you'll get a handful of entries, but for something as ubiquitous as RSS you get a ton of useless feeds that are just. But I really, really like the basic idea, I'll see if I can apply it to the things I'm building. :)