While something like kotlin has a small learning curve and gives you a lot of the benefits of scala. And it's backed by google, jetbrains & the investment that goes into android. Most people understand ADTs, nullable types, lambdas and data classes fairly readily.
A more mature company settles into a typed GC language (Java, C#, Golang) and a typed static language for perf benefits when needed (C++, Rust). Yes there are typed versions of various dynamic languages now, but you don't get the speed benefits that the typing gives you, and a large part of the library ecosystem that you will interact with will still be untyped under the hood.