3D apps are particularly bad for AI. The LLMs are fantastic at web apps that produce an HTML DOM. But they suck at generating code for a 3D app that needs rendering, game logic, physics and similar stuff. All of that is much more complicated than a DOM. Plus, there is 100x the amount of training data for web apps. It is similarly harder to test 3D apps. Testing web code is glorious. You can access the UI via the DOM, execute events, and then check the DOM for success. None of that is possible in 3D, where there is just an image and a mouse, and no way to find and push a button or check the results. A few of the LLM IDEs allow you to add images, which could really help cross this gap, but most do not, and those that do are not designed to be able to detect rendering artifacts, or detect if a given object is in the right place.