The Google style guide is public: https://google.github.io/styleguide/cppguide.html https://google.github.io/styleguide/cppguide.html I think reading it would

The Google style guide is public: https://google.github.io/styleguide/cppguide.html https://google.github.io/styleguide/cppguide.html I think reading it would convince you that the statement Google doesn't use modern C++ at all is false. It talks about modern features like CTAD.