I just want to bump this up, because I think adopting this format is an ideal way forward. In addition to just being an excellent starting point - and a big time saver in comparison to building a whiteboard/canvas from scratch, it also means Obsidian users migrating to Anytype would have an easier time importing their existing Canvases.
I do think other big open-source options like Excalidraw and Draw.io could also be great options - assuming they can be implemented in a way that integrates well with AnyType’s blocks. But I think the compatability with Obsidian canvas exports gives it a leg up.