It does! Working like Google is like that but having had decades to build that dream, using the resources that only a megacorp could bring to bear in the problem, and in a monorepo. The fact that it's a monorepo is not to be dismissed. git doesn't work for monorepos.
Codespaces is like CitC; I haven't been a Google since the rise of AI so I can't comment on how the internal equivalent to Copilot is; Actions is very primitive compared to what Google has, but yeah, you can see where it's going. it doesn't compare right now but it could, eventually.
The Gemini-powered copilot is fine, but has so far, for me, only done automated like "heres a simple method based on the comment you wrote", or "I patched in a change to the other callsites when you renamed this thing". I have also not used it in 2 months so it's probably better already.
I still mainly do my LLM assisted coding in chat-style interfaces that are more like pair programming by mail.
I think the Gemini code assist is coming out as a consumer product, I forgot the name, because Google is awful at branding.
E.g., Codespaces, CoPilot, Actions, etc?
(genuinely curious, not trolling)