Yeah, seems there have been a few requests for it here: https://meta.discourse.org/t/rss-feed-for-category-latest/37192 but not implemented as yet. Interestingly there’s another person there who referenced Chowhound’s RSS implementation which was very useful and easy to use. Discourse’s RSS feeds are not very useful at all.
As a new user I HAVE to ask, “What is RSS”?
Perhaps you need to create a BOA of TLAs and FLAs?