I would question where you learned the "theory" behind modern c++ ownership semantics without ever encountering std::unique_ptr, given that it is the reason mov

I would question where you learned the "theory" behind modern c++ ownership semantics without ever encountering std::unique_ptr, given that it is the reason move semantics were added to the language. As far as I can tell you would have a hard time even finding a source on post c++11 ownership semantics that doesn't mention std::unique_ptr at all. So not knowing about std::unique_ptr seems like a good indication that your sources were c++98 based, making your "theory" a decade out of date.