You posted in a thread that a user started to list ideas about the Graph View. If you want help, please post in Help. I’ve moved your post.
From your questions, are you aware of the Local Graph? All your screenshots are from the full Graph View. The Local Graph shows just a graph of the neighbors of the currently active note. And you can choose to show more levels deep, like 1, 2 or 3 (more gets very full very fast.)