I do use AI for simple questions, and it works fairly well for that, but this claim by MS is just marketing bullshit.

This is my experience. It can be useful for simple things that used to be found with a web search before AI slop broke things. For example, I was having trouble getting a simple CGO program for a POC to communicate with the main Go process. This should have been solvable easily with documentation but the CGO docs are pretty bad and sample code was near impossible to find due to AI slop in the search results. GPT was able to provide the needed sample code to unblock me.