Comment # 2 on bug 1209833 from Libor Pechacek

Created attachment 866212 [details]
Video showing QGIS losing drag-and-drop

I've observed the same behavior in Qt-based applications. The first one where I
hit the broken drag-and-drop was QGIS. The Qt Draggable Icons example
(https://doc.qt.io/qt-5/qtwidgets-draganddrop-draggableicons-example.html)
fails to work as well.

The workaround is to run the application in Wayland mode. I'm using GNOME on
Wayland. If I start GNOME on Xorg, I cannot make drag-and-drop work.