I was introduced to it in Scala. I like how all "classic" languages are cherry-picking features from functional programming. It will make people less shell-shocked in the future, when they try it for real.
Yup, Scala, F#/OCaml and Rust have the best pattern matching implementations I've seen. I'm happy to see other languages slowly coming around. Java has a JEP for it (although nowhere near as nice as Scala's). Even JavaScript has a TC-39 proposal, although its champion has gone on to focus more on Rust. I'm excited for the future.