While I do have a lot of love for TVTropes, I think what they're talking about here is a little broader than most of the tropes we see there (although they do have an excellent article on the Hero's Journey itself [1]). IMO, tropes in the sense that we see them listed there are building blocks for a narrative structure, of which the Hero's Journey is one example. As mentioned upthread, kishōtenketsu is an alternative (and for that matter, TVTropes has an article on it as well, see [2]).

1: https://tvtropes.org/pmwiki/pmwiki.php/Main/TheHerosJourney 2: https://tvtropes.org/pmwiki/pmwiki.php/Main/Kishotenketsu