Yeah, Copilot serves this purpose wonderfully—I've actually started writing documentation straight in VSCode and even occasionally things like certain emails, Jira tickets, or just general notes pertaining to anything vaguely technical, solely because Copilot is quite good at acting as a technical writing assistant.

Since it's just OpenAI's text completion model with a code finetune and without the chat/assistant RLHF, it works much better as an "advanced autocomplete" than ChatGPT or even OpenAI's Turbo model via their API. I can be much more surgical with how I use it (often accepting just a few words at a time), and it's good at following my usual tone.