Agree with OP that the raw models aren't that useful for schematic/pcb design.
It's why we build flux from the ground up to provide the models with the right context. The models are great moderators but poor sources of great knowledge.
Here are some great use cases:
https://www.youtube.com/watch?v=XdH075ClrYk
https://www.youtube.com/watch?v=J0CHG_fPxzw&t=276s
https://www.youtube.com/watch?v=iGJOzVf0o7o&t=2s
and here a great example of levering AI to go from idea to full design https://x.com/BuildWithFlux/status/1804219703264706578