Read You(An android app that does the same thing as Alligator) has a function to show full articles when adding new feeds, that allows for reading most articles in their full extension using the app.
You see, in Read You the article shows in it’s entirety, while on Alligator, you can only see what would be a description on Read You, forcing you to open the web browser.
One example of source that would benefit from this, as shown is the Asahi Linux blog, and it’s not the only one, CartaCapital(which is a Brazilian news site) has the same issue; it only shows the description instead of the full article.