> Whenever I'm dealing with C++, I get tripped by...

Problem: Whenever I'm dealing with X, I get tripped by Y.

Solution A: Don't deal with X.

Solution B: Understand Y, when dealing with X.

For && meaning, this article [1] is still very useful.

[1]: https://isocpp.org/blog/2012/11/universal-references-in-c11-...