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.
I actually use the ChatGPT UI more than copilot - I write code with it while I'm out walking the dog, by describing what I want, then copy and paste it into my text editor on my laptop when I get home.
I'm increasingly using my LLM CLI tool for quick lookups, and sometimes to make changes to existing code too - see https://github.com/simonw/symbex/releases/tag/1.0