xdg-desktop-portal using Qt/KF5/libfm-qt

 LXQt is an advanced, easy-to-use, and fast desktop environment based on Qt
 technologies. It has been tailored for users who value simplicity, speed, and
 an intuitive interface. Unlike most desktop environments, LXQt also works
 fine with less powerful machines.
 .
 This package contains a backend implementation for xdg-desktop-portal that is
 using Qt/KF5/libfm-qt.