When using Kotlin 1.4.32 in IntelliJ 2021.1.1, there are a lot of @sample implementations in Kotlin's Kdoc. However, these are not clickable in IntelliJ.
For example, the kotlin.properties.Delegates#observable has a reference to an unresolved samples.properties.Delegates.observableDelegate sample.
The stdlib samples can be found here https://github.com/JetBrains/kotlin/tree/master/libraries/stdlib/samples, but I haven't figured a way to get the samples on the classpath so that I can click these in IntelliJ.