Hey Charles. Thanks for your feedback. I didn’t fully explain our situation regarding documentation.
The documentation I was referring to was for the design team only. We have a separate React design system that both design and development teams interact with and this includes documentation. Saying that, I agree with you, and design documentation is useful for not only new team members but also in times when the product/design owner may not be around. With documentation comes the balance between the effort to produce and maintain vs time lost not having documentation to hand. In our situation, for our team, we found a self-evident design system was more efficient than producing documentation.
Within our design system we do have a basic intro page, that at a high level explains basic use, our design principles and other help information using the guide. This, in addition to a verbal introduction, is our way of managing our guide.
I hope this helps and thanks for your comments.