This is NOT just the "new UI, old siri", it is much more complicated (actually getting the models downloaded) and probably not worth it.
- Writing Tools, Memories, Reduce Interruptions, Image Eraser (basically everything) doesnt work
- All you get is like a slightly better siri (via the new models) and the new UI
- Like one thing I know proving it works/is a different model is that you can ask about the iphone guide/etc which they showed off at WWDC.
- This will temporarily break faceid - fixable while keeping the AI, look below
- Modifying the gestalt has a risk of bricking your device if done wrong.