SUMMARY

Cannot click on the right edge of the screen on the rightmost virtual desktop. Likewise cannot click on the bottom edge when there are 2 or more rows of desktops. This only occurs when there are more than one virtual desktops and using X11 session. The unclickable area takes up almost the full height of the bottom panel and the close button of a maximized window.

STEPS TO REPRODUCE
1. Create virtual desktops arranged in at least two rows and two columns.
2. Navigate to the last row and last column.
3. Try clicking on or hovering over anything on the bottom / right part of the screen.

OBSERVED RESULT
Nothing happens, clicking does not register.

EXPECTED RESULT
Mouse input detected.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.3.2
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Graphics Platform: X11

ADDITIONAL INFORMATION
Not reproducable in Wayland session.