>Right now, to learn C++ in a generic way, you need to learn pretty much all of programming paradigms and all of their variations - which is not a thing I would consider a plus.

I disagree, I would recommend learning enough where the tool starts providing value to YOU for YOUR problem domain and then pause/resume as needed. The main purpose of any programming language is to be productive in it and use it to solve a problem. In my opinion, there is no reason to learn more than you need about C++ unless you were a compiler author, on the C++ standards committee, or something similar.

"Generic," maybe, but in practice many people learn C++ as one of, as it were, two languages - one for application code developers and the other, for those who build libraries and provide APIs.