This isn't true. Go/Python/non-C++ can get you dozens of jobs with very high total comp, well over anything for C++. A Senior Software Engineer at any FANG will get you over 400k/yr TC. Getting an equivalent job with C++ would be much harder.
You misunderstand me: I'm not claiming its "mostly C++", I'm claiming that its "mostly C++ and Java". Python isn't zero, but its very far down the list, both in lines of code and machine cycles spent.
Certainly, although you can work there using almost entirely python (I did for two years, although I'm now having to use more and more c++ and java as my work shifts to be infra that involves products instead of just raw infra)
I was under the impression that one would need C++ to get one of those 400k+ FAANG jobs. Obviously, I could be wrong.
I've never worked at one myself, but they do hit me up from time to time, and seem to be mostly interested in my C++ experience.
As I said in my disclaimer, my actual experience is very dated at this point, but a strong C++ developer could earn 400k+ even way back in 2011 in the NYC financial industry. Back then, I don't think I'd heard of any Python developers making much more than 150k.
Nowadays, the people I know working in C++ in NYC finance are all making significantly more than 400k.