There is a lot to love about Kotlin and I’m excited for its potential, but I’m waiting for some of the alpha and beta statuses to be lifted here before I commit more fully or recommend it for projects at work:

https://kotlinlang.org/docs/components-stability.html

(The new K2 compiler frontend is considered alpha but due to become stable with v2: https://blog.jetbrains.com/kotlin/2023/02/k2-kotlin-2-0/

Kotlin Native and Multiplatform are both listed as beta.)