SUMMARY No matter whether the modifier key is pressed before or during a drag and drop operation, dragging one file from one dolphin window to another dolphin window does not respect the modifier key at all. STEPS TO REPRODUCE 0. Use Wayland 1. Hold Ctrl 2. Drag file from one Dolphin window 3. drop it on another Dolphin window OBSERVED RESULT Dolphin pops up the unhelpful "here's the actions you could've used with a modifier key!" context menu EXPECTED RESULT Dolphin copies the files SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.27.5 (available in About System) KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 ADDITIONAL INFORMATION I'm using Wayland. No, this is not a duplicate of the bug where you have to hold the modifier key before starting the drag.