Some orgs I've worked for were very "wiki" driven - there's a big expectation of using Confluence or Notion to navigate documentation. This applies both big (5000+) and small (50+) organizations for me.
Other organizations I've worked in were very document centric - so you organize things in folders, link between documents (GDoc @SomeDocument or MSFT's equivalent). Those organizations tend to pass around links to documents or "index" documents. Similarly, this applies for both big and small organizations in my experience.
Of the two, I tend to prefer the latter. Without dedicated editors, the wiki version seems to decay rapidly, especially once the org grows above some size.
Knowledge management is hard...