.NET Core 3.0
C# (the default .Net lang) has so much ceremony, boilerplate/scaffolding and IDE dependence (IDE programmers) and OOP overhead that it requires 5x more lines of code than the same app in Python or Go. Every time my interest peaks, I take a look leave with the same feeling that it's a dated/bloated OOP relic and would take all the joy out of programming.  I've also noticed that most C# programmers don't usually know another language (other than a little JS) and seem totally dependent on Visual Studio; if all they had was a text editor they'd be lost. That's not a good place to be.