What is the most user-friendly way to make a Kotlin GUI application?

I want to make a Kotlin GUI application packed into a standalone JAR (or with a tiny EXE that runs the JAR) that runs on Java 8 (the most installed Java version) in order to make using it as easy as possible.

I heard that there are problems with JavaFX in the modern day that requires users to install JavaFX alongside JRE, and I don’t want my users to be bothered with this.

So, which GUI technology should I use in this case?