A better choice would be enterprise titans like Java and .NET, more bases are covered. Go's GUI story for example is just endless fragmentation compared to e.g. Java.
.NET is an interesting case, because of WinForms, which is a de facto part of the standard library. I think few C# developers think of WinForms as bloat; it's very convenient for making simple UIs. Yet putting, say, GTK+, in the Go standard library would doubtless be considered bloat. I don't think there are easy answers to these questions.
It's not that convenient on Linux though...