I should try Codeium then, Copilot's occasional "heap of code" was one of the most annoying parts of using it to me. Why? Because it looks plausible, so I accept it without actually understanding it.
But using it as a better autocomplete is actually quite nice, for example when I have some more repetitive code to write. And a line-by-line AI completer will at least give me the time to read it piecemeal, which I find much easier. Just like I understood way better when my math teacher demonstrated how to solve a problem compared to reading it from the textbook.