I am not sure if roam also has an local graph view, but to me it seems that obsidian with this feature has one upon its competitors.
Indeed, it’s amazing. I put it in right sidebar under the backlink/outline/tags. So i can quickly open en close it. You can now easily see the relationship of each file directly and more visually.
Roam Research does have this feature, but Obsidian’s is so much nicer!
This is a wonderful feature. Combined with random note, makes discovery so interesting. And, with the little animation, a lot of fun. It’s like interesting new molecules appearing in the sidebar.