As a frequent RSS user, I want to read the content in my preferred environment with my preferred contrast, colors and font. Many years ago I decided to not follow people who only put a crippeled version of their content into my RSS reader. If they don't want to be read, that's ok, they're pleanty others with better content anyway which I gladly read instead.

Any chance you know of a good list of full uncrippled rss feeds?

I'm not quite sure what you mean, aren't list of things to read very personal and dependent on the taste and interests of the person?

My website has full feed: https://jeena.net/all.atom and so have blogs like Kottke http://feeds.kottke.org/main Marco Arment https://marco.org/rss Scott Hanslemann http://feeds.hanselman.com/ScottHanselman and most of the personal blogs you can find out there.

But as I said, I most probably didn't quite get the question.

But otherwise there are plugins like https://tt-rss.org/oldforum/viewtopic.php?f=22&t=1539 to replace the short content in a RSS feed with the full content from the Website.