Idk why you keep posting this information that doesn't address the problem in question.
Opening individual notes in their own windows isn't the same thing as having multiple EN application windows, and it doesn't serve the same use cases. For example I have multiple desktop spaces for different projects and I need a full en window on each of them. As I mentioned above in this thread, you can do this by running the en legacy app, it preserves the old functionality. The Legacy sync issue mentioned earlier has been resolved, so it's a viable solution
