> Jpackage bundles a small Java VM (with only the features you use) together with your compiled bytecode into a single executable. When it runs it starts up the VM and executes bytecode on that VM exactly the same as it would be if you were to run a jar on a preexisting JDK/JRE installation.

This is incorrect. Jpackage creates an installer which will unpack the VM image and any other resources.

I've tried it with a small CLI tool and it actually doesn't work that well (at least on Windows).