I genuinely believe statements like GP’s are a result of living in a cutting-edge tech bubble, not necessarily SV, but online hype and discussion based reality. Sure several large impactful projects use Go and a few companies are dabbling in using Rust. However, the number of these usages is dwarfed into near statistical irrelevance by the amount of C++ code in active production and usage (it is even more irrelevant if you count programs written in C).

That is not to say there is nothing good or beneficial about these languages, devs using them are free to evaluate the features provided and find that they suit their use case and go get to work. But some dev’s pet language, no matter how loudly they scream on Reddit and HN, is not yet threatening C++.