I use dolphin as my file manager. I have this behavior of my system: Whenever I open or save something using a KDE app, the dialog used is kdialog. (If you use Plasma you can trigger one using
kdialog --getopenfilename .)
Some Apps (nearly all or all non KDE apps) are using a different file dialog, I think the one that Gnome has (If you know the name of the package or dialog it would help too).
I want all apps, to use kdialog. Is there a way how to set a default or some other solution?
I read this answer, but am not completely sure about this phrase: 'What you'll find is that is the file dialog in is not a spawned process, it's part of the app itself. The way it looks it governed by the libraries the application is written with and the theme applied to that library'. Does this mean - that unless I leave the source code as it is - that I have no chance to trigger a other type of file dialog? The post also suggest this arch wiki about "Uniform look for Qt and GTK applications". I've tried Kvantum, but as I understand it manages themes - file dialogs are not a part of a theme?
Thanks for any clarification.