SUMMARY Present Windows button shows the pop-up menu to choose between different windows of the same program, as another window. STEPS TO REPRODUCE 1. Start Plasma, open a few windows, open 2 windows of Firefox 2. click on Firefox button on the panel 3. let the menu to choose between the 2 Firefox windows visible 4. click on Present Windows Button 5. You will see all your windows and one more, the popup menu as another window OBSERVED RESULT popup menu shown as another window EXPECTED RESULT Only real windows are showed Distribution: KDE neon Testing Edition Plasma: 5.20.90 Frameworks: 5.79 Qt: 5.15.2 Type: 64-bit ADDITIONAL INFORMATION Tested on a Neon system switched from user edition to testing edition with ppas. It could be a problem of my system.
Using Wayland
*** This bug has been marked as a duplicate of bug 417378 ***