You can find out a lot about how Konqueror works without needing to read this entire document if you take advantage of Tooltips and the What's This? feature.

If Tooltips have been enabled in KDE (K menu Control Center->Appearance & Themes->Style, Style dialog) then when you hover the mouse pointer over a Toolbar or Navigation Panel button it should bring up a terse description of what that button does.

What's This? is invoked by the Menubar Help->What's This? item, by Shift+F1, or by just left mouse button clicking on the question mark near the top right hand corner of Konqueror's window. It changes the cursor to show a question mark alongside the arrow.

When this question mark is visible, a left mouse button click won't actually do anything until you have clicked on a control (or the text alongside it) that supports What's This?, in which case it will display a reasonably comprehensive description of what the control is supposed to do. Most of the dialog boxes that Konqueror brings up support the What's This? feature.