We all tend to know our circles, but ignore most of what is outside of it. Myself when I was a C# developer, could tell of many companies using .NET in my city,

We all tend to know our circles, but ignore most of what is outside of it. Myself when I was a C# developer, could tell of many companies using .NET in my city, but couldn't tell you a single company using Java, even though there was a lot of them (probably more than companies using C#). If I had to guess the usage of newer languages like Rust, Go, etc., I'd probably underestimate it tremendously, just because I'm not part of that ecosystem (not looking at job postings, not participating in conferences, not knowing popular open-source frameworks).