Or one just uses JVM implementations instead, and yes they exist for all Kotlin target flavours, including iOS.
JetBrains wants to go big with Kotlin, and be a language vendor, lets see how they manage outside Android, where they aren't the godfather chosen language.
I've only used Kotlin for serverside development (Redhat's Quarkus framework) and experimentally Kotlin Native, though it definitely still has the reputation as "That Android language" for sure
