I believe that Windows and Mac use the native LnF by default, but should verify both that this happens and that it's a good choice. For Linux, the open file dialog in the GTK LnF doesn't allow directory selection, so it might be a good idea to use Nimbus or Metal as the default.
I believe that Windows and Mac use the native LnF by default, but should verify both that this happens and that it's a good choice. For Linux, the open file dialog in the GTK LnF doesn't allow directory selection, so it might be a good idea to use Nimbus or Metal as the default.