I'm very comfortable with Java, but one of the issues I've had is the size of the resulting binary with the JRE included (it's possible to not include a JRE of course, but it's much easier to have it bundled from a user perspective). You can use jlink to reduce the size of the bundled JRE so that it only includes relevant modules, but does it actually reduce the binary size by a significant amount?

Also, JavaFX doesn't seem to have backing from larger organizations like Electron does. Are there any well-known apps created with JavaFX. I know IntelliJ was created with Java but using Swing if I recall correctly.