GP is talking nonsense. No developer is ever going to be able to say "not my fault, I used what ChatGPT gave me" because without even reading the OpenAI license I can all but guarantee that the highly paid lawyers made sure that the terms and conditions include discharging all liability onto the user.

GP appears to think that if he sells a lethally defective toaster he can simply tell his buyer to make all claims against a unknown and impossible to reach supplier in China.

Products don't work like that, especially in life-critical industries (I worked in munitions, which has similar if not more onerous regulations).

The buck stops with whoever sold the product.