I just had this experience a week ago. I've worked with C# commercially but for the past 4 - 5 years I've been working with TypeScript mostly. There was a fun

I just had this experience a week ago. I've worked with C# commercially but for the past 4 - 5 years I've been working with TypeScript mostly. There was a fun HR girl that sent me a message how she found my profile compelling and we should schedule an interview. I said why not. After 45 minutes of asking me all sorts of questions, she asks if I have experience with .NET 5. I went on to tell her that for the past years I haven't worked with .NET (though this was obvious from my CV) but have worked across multiple stacks, heavy TypeScript which shares a type system and the same creator bla bla. Then she asks but have you worked with .NET 5? I told her I worked with .NET Core for personal projects, but when I was working in .NET there was no .NET 5. And she stopped it there. "I'm sorry but I don't want to waste your time, they are looking for someone with .NET 5 experience." Honestly, it's so stupid. I have more than a decade of experience working with software, been founding engineer, CTO, not shabby at DS&A. I can't imagine what kind of company would let their talent pool be so limited by such a factor. Unless you're doing some heavy .NET voodoo, but this wasn't the case.