I don't care about best effort. I care about getting the correct diagnosis. GPT-4 can already offer insightful information, even if it's just by augmenting the doctors diagnosis efforts. Not using it is just dumb.
I hate doctors but at the same time you have to look at reality. Not every decision needs to be data driven, the qualitative aspects of hallucinations are very real and should not be ignored. I'm sure you know the hallucinations that pop out of chatGPT can get wild. Definitely use it, but do so with caution.
Doctors at least make a best effort.