My two use cases are project brainstorming and boilerplate code, which saves a lot of time for me. For example sometimes I find an interesting paper and want to try it out in Python. If they did not provide code that will take some time and trial and error to get it running. Or I just copy the whole paper into ChatGPT and get an initial script that sometimes even works with it's first try. But that is not the point, I can do the last steps myself, it really is a time saver for me with regards to programming.