So you do agree? If you are having to review and correct then it's not really the LLM writing it anymore. I have little doubt that you can write good Typescript, but that's not what I said. I said LLMs cannot write good Typescript and it seems you agree given your purported actions towards it. Which is quite unlike some other languages where LLMs write good code all the time — no hand holding necessary.
What else would you need to correct? I've never had trouble with LLMs generating basic syntax in any language. Architecture is exactly the aspect of language where LLMs seem to like to go to crazytown when in Typescript. It seems you've noticed too if the ideas in that area have had to come all from you.
Exactly. You can write good Typescript, no doubt, but LLMs cannot. This is not like some other languages where LLM generated code is actually consistently good without needing to become the author.