I just wanted to vote with my feet and say that my experience echoes yours closely.

Modern coding agents have a remarkable grasp of circuit design and the net result is that they keep pushing me to learn more, faster.

I do find that I often have to specify that I only want parts that are "active on Digikey" because otherwise it will recommend obsolete parts. However, I consider this just like reviewing code generated by an LLM. You don't get a pass on reading datasheets or verifying statements.

I recently had GPT 5.2 spit out a progression of circuits that can amplify a dynamic mic signal to line level, simple to complex, with the intention of finally learning how good amplifiers work. Adding transformers and gain stages with the different OPA family parts and hearing the hum disappear and noise floor drop is the best kind of education.

A tip: BAT54SW specifically is the best part for protecting your pins.