Microsoft has had a Python tooling team in DevDiv for almost 10 years now. Originally, we were primarily working on Python support in Visual Studio proper. We also took the first crack at Node.js support in VS - also before VSCode was a thing.
Aside from that, Microsoft also owns the VSCode extension for Go, so there's that team, as well.
Aside from that, Microsoft also owns the VSCode extension for Go, so there's that team, as well.