A common thing I've searched for, for instance, is the various date formatting options and types I need for managing time zones. I suppose I could sit down and learn the plethora of options, but I don't see that is information that's worth memorizing internally. Similarly, I suppose I could really internalize the complete syntax of regular expressions, but is it worth it? I've used them so many times before ChatGPT, but I've not memorized absolutely all the options available to me.
The other side of the coin is this is allowing me to make so much progress that I'm needing to even use more APIs than I would've previously. If I had done it the old way, I might only have time and energy to devote to a small number of tasks, but with ChatGPT I can "explore" more territory than I wouldn't have previously.