As much as I like cross-platform stuff, I also really like native UIs that follow native UX patterns, etc.
We just got used to it. There is some very vague thin layer of "commonly accepted patterns and symbols", but otherwise users just get through it.
Also ChatGPT hangs and has more weird bugs compared to Codex.
https://daringfireball.net/2026/06/swiftui_only_makes_it_eas...
That sounds like a monster I would be afraid to touch.