I use GitHub Copilot for various tasks, and its usage varies depending on the case and sometimes on the task itself.
Occasionally, when I'm tasked with rebasing our entire codebase, I use Copilot to summarize the purpose of the file to gain an understanding of what the entire code is meant for. Afterward, I provide suggestions on how to minimize the codes and logic so that the code is refactored and redundant code is eliminated. This saves me a lot of time. Before using Copilot six months ago, the process was cumbersome as we used Chargebee, which required copying the code and pasting it into Chargebee.
However, GitHub Copilot's extension is integrated into VS Code, making the process more efficient. By simply hitting a keyboard combination, I can communicate directly with the agent within the Code Editor. This integration makes the process seamless and easy to use, as it has the code context baked into the Code Editor.