From my experience, all fo these dashboard frameworks in python look fine and dandy but break as soon as you try to extend them. How easy is it to add components? Say I want to trigger actions based on hover events or capture click data, would that be even feasible? Use cases like those, just to name a few, are why I keep going back to R's Shiny. It makes it much easier to write React components and just communicate custom data between the browser and the server.