title describes it exactly
STEPS TO REPRODUCE
1. open plasma systray popup
2. trigger KWin Switcher with Alt+Tab
plasma systray popup is shown into the Switcher window list
plasma systray popup should not be part of the switcher window list
(available in About System)
KDE Plasma Version: 5.18.1
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1
Reproducible on neon unstable.
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.19.80
KDE Frameworks Version: 5.71.0
Qt Version: 5.14.2
Enabling "Synchronize skip switcher with taskbar" in KWin Scripts kcm
fixes this issue.
*** Bug 424167 has been marked as a duplicate of this bug. ***
Affecting me on X11 too, so it's not just Wayland.
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/38
Git commit a707731607c5accbc99e813fc3fd3422eec53483 by Nate Graham.
Committed on 17/07/2020 at 02:18.
Pushed by ngraham into branch 'master'.
Don't show Plasma dialogs in task switchers
Plasma dialogs are already marked as not being shown in the task manager
and the pager. We should similarly omit them from the task switcher, for
the same reasons.
M +3 -3 src/plasmaquick/dialog.cpp
it's reproducible again at least on Wayland session unless "Synchronize skip switcher with taskbar" is enabled in KWin Scripts kcm.
Operating System: Arch Linux
KDE Plasma Version: 5.20.0
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1
*** Bug 337992 has been marked as a duplicate of this bug. ***
Looks like this has already been fixed.
Ah yes, it was.