It's never occurred to me to even try getting an LLM to design or layout a circuit for me.
Instead, I have dozens or hundreds of chats in my history where I debate the merits of different parts for different tasks and scenarios, the nuances of decoupling strategies (package size vs deregulation), work out resistor network ratios from the reels I have on hand.
Then being able to feed an LLM a datasheet and have it write a custom driver against the registers I need so that it does exactly what I want without the cognitive overhead of a buggy package with someone else's strong opinions about how a part should be used is amazing.
Frontier models are incredibly good at electronics, and it's got nothing to do with what happens inside the EDA.