To give some context, I've been working remotely since the start of my career and transitioned to a more content-oriented role last year, so I never progressed beyond being a junior engineer. But I do remember the deep discussions and technical planning sessions being the most rewarding and mentally challenging.
I have seen that AI has the same tendency of over-engineering solutions when you are in the documentation phase, where it tries to scope out the entire plan before I have a clear idea of what I wish to do. So I typically begin with a simple markdown doc and disable auto-complete before reaching out for it later.