I can't comment on whether this holds for C++, but I've experienced it at my current position with Elixir. While it's a high level language like most programmin

I can't comment on whether this holds for C++, but I've experienced it at my current position with Elixir. While it's a high level language like most programming languages I know, it's still a large paradigm shift to a purely functional language. And yet, I could get to the level where I could make useful contributions to our backend within a few days. I went through Elixir's "Getting Started" guide, and afterwards, I just learned concepts as I needed them. Yes each language has its quirks, and I guess C++ has gained quite a few of them over the years, but you can get quite far with a basic understanding of a language, and an existing code base to learn common usage patterns from as well.