go has other problems that preclude it from being a good option including binary size, memory usage, and portability. There are certainly a lot of places it is a good choice for, but I can't really imagine using it anywhere I use c++ today.
when you talk about macos/windows/linux without CGO yes Go is very portable and easy to use, when you need CGO, or you need work on other architecture or OSes, Go is pretty much a no-go. and c/c++ are still the only ones close to the claim "runs on everything".
