I just found a brand new PAGER for man: konqueror (man:/) https://imgur.com/a/F3o4VIu
Konqueror can open up anything using KDE's KParts. Applications and libraries provide different KParts and Konqueror is just a shell that can open them all.
Dolphin is Konqueror's KPart provider for file browsing.
So basically Konqueror's file browsing capability is provided by Dolphin.