I can see some performance-sensitive projects being done in Swift, Rust, or Golang. Funny, the place I don't like using Swift is its main use case, high-level

I can see some performance-sensitive projects being done in Swift, Rust, or Golang. Funny, the place I don't like using Swift is its main use case, high-level iPhone apps. It's overkill. The complex Stackoverflow answers for "how to do (simple thing like getting a substring) in Swift" say so.