To be honest, this could be an example of where AI could do marginally better. I don't mean that because of code quality or functionality. I mean it in the sense of MS software getting absolutely fucked by internal competition and stack-ranking fostered during the Balmer years. The APIs are inconsistent and there is a ton of partially implemented stuff that will never be pushed to completion because everyone who worked on it was fired.

An AI might be able to implement things without intentionally sabotaging itself but, because LLMs are in the forefront of what would be used and do not have the capability of intention or understanding context, I'm a bit pessimistic.