STEPS TO REPRODUCE 1. Have some file on Desktop 2. Have say Google Drive open in Firefox active tab 3. Switch to Desktop via Win + D keyboard shortcut 4. Drag and Drop file from Desktop to Google Drive via the taskbar OBSERVED RESULT From the moment you drop your file onward, each time you move the cursor above the taskbar it changed its type from "default" to "dragging". The type changes when you cross the border between the taskbar and the desktop. Screencast: https://youtu.be/Op840kVAiCg EXPECTED RESULT Cursor should not become dragging after the dragging has ended. SOFTWARE/OS VERSIONS Operating System: Kubuntu 21.04 KDE Plasma Version: 5.21.90 KDE Frameworks Version: 5.82.0 Qt Version: 5.15.2 Kernel Version: 5.11.0-17-lowlatency (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz Memory: 7,6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620
Changing video speed to 0.5 will help you see the cursor better.
*** This bug has been marked as a duplicate of bug 428747 ***