Fine, what shall we call this programming style in C++ (lambdas, immutability, function composition, etc) so that everyone is happy then? Functional style C++?

Fine, what shall we call this programming style in C++ (lambdas, immutability, function composition, etc) so that everyone is happy then? Functional style C++? I haven't felt the need to go deeper than that, it's very possible that I've missed many interesting things, but it's not clear that I can use those things and see tangible benefits in my projects today.