I've mentioned this a few times now, but Designer was released 5 years go, and since then we have continually added new features and bug fixes, for free. I understand that in this thread, people are disappointed about the lack of DXF support, and in other feature request threads you'll find other disappointed users. However, we have to balance our work loads and prioritise features over other ones. That doesn't mean we aren't listening, it just means we're busy. When Designer shipped it didn't support Artboards, Symbols, Assets, Arrow Heads, Multi-Fills & Multi-Strokes, etc. And these were all requests that came from users (you can find the old feature request threads on these if you search).