Convince your PMs to use an LLM to help "breadboard" their requirements. It's a really good use case. They can ask their dumb questions they are afraid to and an LLM will do a decent job of parsing their ideas, asking questions, and putting together a halfway decent set of requirements.
How does the LLM get all the required knowledge about the domain and the product to ask relevant questions?
PMs wouldn't be able to ask the right questions. They have zero experience with developer experience (DevEx) and they only have experience with user experience (UX).