Sorry to jump here, but I think Dendron and Foam are great tools. But as normal users, I don’t think many of us care about if the app is open source or not. Normal users care much about the accessibility of the app, is it friendly for users or not. To install Obsidian, I need only to click on their exe file, and done. The UI is easy to understand and many youtube tutorials are there. This is why I think Obsidian “maybe” has more users than Roam currently. The developers also are extremely active (and I see Dendron’s developer is also very active). I don’t know I feel if Foam and Dendron have apps without relying on VSCode, they would reach more users.