You don’t have to memorize. Next time, you can just recall the commands by looking at manpages or this blog post again. You will already retain most concepts.
ChatGPT is cool, but it is wrong often enough that makes hard to trust. I don’t want to be running the wrong command and suffering its consequences. I only resort to chatGPT when docs and web search do not give me an answer quickly. Even then, I try to verify chatGPT with docs before going forward.