"Worldbuilding" is not synonymous nor coterminous with setting, description, background, or level of detail, all of which are ordinary aspects to pay attention to in any work of fiction.

I could try to claim that exploding the sci-fi subreddits' posters with this would be good for their character, but really I'm just evil like that sometimes.

TIL co·ter·mi·nous /kōˈtərmənəs/ adjective having the same boundaries or extent in space, time, or meaning. "the southern frontier was coterminous with the French Congo colony"

he thrusts his fists against the posts

After having seen a lot of worldbuilding "questions" (usually twenty paragraphs of detail followed by a simple question), I'm pretty much of the population that most often worldbuilding is what one does instead of writing a story.

Was once at a mystery writing panel where someone asked a question about keeping track of the very detailed imaginary town where her mysteries were set. From the panel, “At a certain point you have to decide if you are a writer or a scrapbooker.” The gasps! 😱🙊😳

I have listened to THE WITNESS FOR THE DEAD by Katherine Addison many times and I love the bit where a very old woman says what quilting patterns she’s using, because it implies a whole world of quilting tradition within this world but we only get a glimpse of it