I never needed to use Resharper.

Resharper might offer better refactoring tooling, but it doesn't offer anything else over what it means a full Visual Studio experience.

> Which first party IDE do users of Python, Java, Go, Node, etc. use?

I though we were speaking about .NET here, and other languages offered by OS vendors.

From your list only Java fits this description.

So to answer it, Java main IDE, the one pushed by Sun and used as basis for Solaris development was Netbeans, which incidentally still has features not offered by InteliJ and Eclipse regarding GUI designers, visual editing for Web development and mixed debugging between managed and native code, including directly visualization of native code generated by the JIT.

Visual Studio has quite good support for Python and Node as well.