It can be useful in learning the basics of technology that’s completely unfamiliar to you.
It’s kinda like how it’s fine to use a wikipedia article as a starting point for research on a subject. But it’s not a good idea to use wikipedia as an authoritative source on a subject.
It’s also useful as a reminder for for technology you haven’t used in a while. You can fairly quickly get the ordering of the parameters of a well known method and be on your way a lot faster than a google search or going back through your code to find where you’ve done it before.
It’s also good for mundane tasks like making a class that’ll handle a specific JSON request or handle some data coming from a table in the DB. You know the things where you’re just copying and pasting some property names and entering the corresponding types. Just put in “class for: {“blah”: 69 }” or whatever and save a little time.
But yeah it’s not going to know anything too technical, it’s not going to know anything about less common problems, it’s not going to know the best algorithm to use, etc. But if you’re just using it for some basic ass shit, it works well enough.