Longer articles facilitate page search, something developers are used to using in one-page API reference sites, reducing the chance of navigation issues. Longer pages allow readers to follow a logical flow and grasp the complete concept. With effective headings and subheadings, it’s easy to locate specific sections without extensive jumping between pages.
There’s nothing wrong with fragmentation per se; it’s just good practice to be conscious of how you split related topics to ensure it is clear how they are connected and avoid fragmentation if it is not necessary.” https://docsgeek.io/blog/posts/task-based-api-docs
