Is there is way to hide Application title on task manager? I dont want to hide app name, want to hide only title of that app for example from below image i want to hide Download and new Tab not Dolphin and Google chrome.

Right click on the Panel and choose 'Show Alternatives' and select Icons Only Taskbar

I don't want icon only, i want name of the application only.

I don't think you can, make a feature request for it on https://bugs.kde.org/enter_bug.cgi?prod ... %20Manager

Hi!
As far as I know, the title is set by the application itself and Plasma just displays it. You can perhaps use a copy of the application applet and overwrite the title by displaying the executable or read the name from the matching desktop-file. The corresponding qml should be /usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml, which reads the appName from the c++-model. The complete source for the taskmanager could be found at Plasma Desktop - applets - taskmanager on invent.kde.org