I clarify:
I recently created a community where you can post stories, but I have a question: why didn’t I find such a community in this instance? Is it just that the brain has an easier time absorbing content such as comics or manga, and reading causes excessive fatigue, or are there other problems, for example, writing is harder than drawing?
You misread what I said. For the fediverse to work, it needs to be distributed. OP said they didn’t see a stories community on “this instance” (was unclear whether they meant lemmy.world or lemmy.ml, but both are notoriously monolithic). Centralizing all users and communities onto a single instance is antithetical to the fediverse.