Remove Yoast "This post first appeared on..." text in RSS
Q: There is text displaying "This post first appeared on <domain.com>" below all of the article excerpts in my RSS feed, how do I remove this?
A: That is usually from the Yoast SEO plugin, it adds text to your feed to link back to your site. You can edit or remove the text within their plugin settings:
https://www.feedotter.com/blog/remove-this-post-first-appeared-from-your-blog-posts/