**Is your feature request related to a problem?** I'm using KDE and seeing GTK file picker was unexpected. **Which solution do you suggest?** Use an [XDG Portal](https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.FileChooser.html) for calling a file picker which would be native to the Linux Desktop being used. **Which alternative solutions exist?** Continue using GTK file picker for all DEs. It may stay as a fallback if a portal wouldn't work. **Additional context** I use an AppImage desktop app on my Fedora KDE 42.