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).

You can hope that an LLM might have some instructions related to DevEx in its prompt at least. There's no way to completely fix stupid, anymore than you can convince a naive vibecoder that just vibing a new Linux-compatible kernel written entirely in Zig is a feasible project.