This has been my experience as well. I actually avoid recommending Copilot to juniors because I think using it requires a deeper understanding of what you're trying to do than is required to just write the code by hand. When you have that understanding it can be a huge time saver, but it's not something you can just pick up and magically ask to solve your problems for you.

I’m curious what your workflow is like switching between copilot and gpt-4. I typically have an open window for each, though this can feel more cumbersome than necessary at times.