[throwaway2037]

Since you last used IntelliJ "about a decade ago", what do you use instead?

    > But running GUI apps on the JVM isn't the best for 1000 reasons, so I hope they've moved off it.

What would you recommend instead of Swing on JVM? Since you have "1000 reasons", it should easy to list a few here. As a friendly reminder, they would need to port (probably) millions of lines of Java source code to whatever framework/language you select. The only practical alternative I can think of would be C++ & Qt, but the development speed would be so much slower than Java & Swing.

Also, with the advent of wildly modern JVMs (11+), the JIT process is so insanely good now. Why cannot a GUI be written in Swing and run on the JVM?

[brabel]

Notice that INTELLIJ uses its own UI framework, really, which I don’t think has much Swing left in it after all these years. And Kotlin is the main language for a decade now.