I love Copilot in VSCode. I always select model "Claude Sonnet 3.7", when in Copilot since it lets me choose the LLM. What I love about Copilot is the tight integration with VSCode. I can just ask it to do something and it relies on the intelligence of Claude to get the right code generated, and then all Copilot is really doing is editing my code for me, reading whatever code Claude tells it to, to build context, etc.
Claude Sonnet 3.7 is my default as well in Visual Studio. i have been playing with their new default GPT-4.1. its not bad.
That's a different, more useable copilot.