If enabled, the task manager can cycle through tasks. However, there is no option to skip minimized tasks. PS: Couldn't find this feature request. I'm sorry if this is a duplicate. I've setup my development tools and am ready to work on this feature.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/154
Git commit 1e546f4efd036acf20813acb5b11dda7f486167f by Nate Graham, on behalf of Abhijeet Viswa. Committed on 21/05/2021 at 14:49. Pushed by ngraham into branch 'master'. [taskmanager] Skip iconified tasks when using Mouse wheel Adds an option to skip iconified tasks both inside and outside tasks groups. M +7 -2 applets/taskmanager/package/contents/ui/code/tools.js https://invent.kde.org/plasma/plasma-desktop/commit/1e546f4efd036acf20813acb5b11dda7f486167f
Git commit 5d9aaf69f4ca6ca39c326193ebf9355af6f83c7a by Nate Graham, on behalf of Abhijeet Viswa. Committed on 21/05/2021 at 14:50. Pushed by ngraham into branch 'Plasma/5.22'. [taskmanager] Skip iconified tasks when using Mouse wheel Adds an option to skip iconified tasks both inside and outside tasks groups. (cherry picked from commit 1e546f4efd036acf20813acb5b11dda7f486167f) M +7 -2 applets/taskmanager/package/contents/ui/code/tools.js https://invent.kde.org/plasma/plasma-desktop/commit/5d9aaf69f4ca6ca39c326193ebf9355af6f83c7a