How do you share what you know w/ team members?

I recently changed jobs and it was a massive headache transferring knowledge to my old team members before I left. In the end, I used a combo of Google docs, Notion, spreadsheets, and Loom videos. With that said, I'm curious... how do you share what you know with other team members? Part of a team right now who is working on an MVP solution to this but would love to hear what kind of tools you're already using to solve this problem :)