I also found myself feeling a bit dumb after using Copilot for some time. It felt like I didn’t have to know the API, and it just auto-completed for me. Then I realized I was starting to forget everything and disabled Copilot. Now, when I need something, I ask ChatGPT (like searching on Stack Overflow).
Same. I find myself having to pause and let Copilot finish. At some point, you lose/ not retain anything which you don’t use. I’m not sure I want to give that.