Question：
In what scenarios is it better to use a struct vs a class in C++?
Answer：
The only difference between a class and a struct in C++ is that structs have default public members and bases and classes have default private members and bases. Both classes and structs can have a mixture of public and private members, can use inheritance, and can have member functions.
I would recommend using structs as plain-old-data structures without any class-like features, and using classes as aggregate data structures with private data and member functions.