Can anyone confirm this?

When you click the bottom of the screen, you open the kickoff widget. If you click the bottom-left corner, or the left of the screen/panel, the widget does not open.

* I noticed this when I switched to Manjaro's plasma-git, but wasn't sure it might've been already fixed.
* So I just tested neon-unstable-20200510-1103.iso in a VM, and noticed the same behavior when the VM was in fullscreen.
* I tested kubuntu-disco-desktop-amd64.iso as well, and noticed it obeyed fitt's law as I could activate the widget by clicking the bottom-left of the screen and the left edge of the panel.

I could not figure out what caused it.

* https://github.com/KDE/plasma-desktop/commits/master/desktoppackage/contents/views/Panel.qml
* https://github.com/KDE/plasma-desktop/commits/master/containments/panel
* https://github.com/KDE/plasma-framework/commits/master/src/desktoptheme/breeze/translucent/widgets/panel-background.svg

Older bugs which might be useful for figuring it out:
* https://bugs.kde.org/show_bug.cgi?id=394819
* https://bugs.kde.org/show_bug.cgi?id=389215