Aren’t you giving your code away to Microsoft if you use Copilot?
However, there are plugins to use LLM’s while coding with Neovim and Emacs, so, you can still use these editors for that if you want.
copilot for business exists https://docs.github.com/en/enterprise-cloud@latest/copilot/o...
I see this being a blocker at a lot of places. I know in my workplace the infosec people are apoplectic about it and we supposedly have a 'partnership' with OpenAI.