STEPS TO REPRODUCE
1. Have multiple windows open.
2. Attempt to close one of them by clicking the cross icon with a mouse. It will close after 1 click.
3. Attempt to close another window the same way. It will eat 1 click and only close after the 2nd one.
Operating System: openSUSE Leap 15.3
KDE Plasma Version: 5.24.90
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.2
Graphics Platform: X11
Graphics Processor: Mesa DRI Intel® UHD Graphics
In 5.24.5 there is similar problem. The window in the "view all windows" effect closes only by the second click. I've attached video.
Created attachment 149554 [details]
Double click to close
*** This bug has been marked as a duplicate of bug 454275 ***