@neil I think the cognitive space of "feeds" has changed so much that RSS faces a lot of well funded competition. Nobody is promoting RSS so accessing the feed is a chore. The URI schemes are not standardized.
So much effort these days goes into monetization. I can see why; hosting is expensive. If RSS was ever a medium that mitigated hosting costs, there are many alternatives such as Facebook, Instagram, Tik-tok and X. They've already signed a contract with Mephistopheles. Ads are the price.