What's up with the massive amount of chrome used for nothing except new tab/copy/paste buttons? Is it really necessary to take up what could be used for 2+ extra lines of terminal output for a labeled Copy button? Compare it to gnome console, or any other terminal really, and you will get far more terminal output for the size of the window, as it should be.
And it's not just Konsole. So many KDE apps have this same problem. Giant labeled buttons taking up space from the actual content, for things you will never use or have well established keyboard shortcuts already.