I don't think you would expect to get into a flow state if you were intermittently directing another (human) programmer to do work, and you shouldn't expect to with LLM-driven coding either. Perhaps you are best finding out ways to extend the length of time where the LLM can work without prompting, then use that downtime to focus on other tasks that will help you to guide it better the next time you need to prompt it.

I feel the opposite. Creating a DTO or wiring up a CQRS command takes me out of the flow. And while I enjoy a good refactoring, it would be nice if I could just have it refactor code in the background while I'm still working in the same file.