From Gentoo Wiki
Dolphin is KDE's file manager that allows navigating and browsing the contents of hard drives, USB sticks, SD cards, and more. Creating, moving, or deleting files and folders is simple and fast. It is written in C++ and Qt.
USE flags for kde-apps/dolphin Plasma filemanager focusing on usability
||Track which folders are frequently accessed on a Plasma desktop|
||Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces|
||Enable handbooks generation for packages by KDE|
||Cross-KDE support for semantic search and information retrieval|
||Send anonymized usage information to upstream so they can better understand our users|
||Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)|
emerge --ask kde-apps/dolphin
- File managers — a computer program that allows for the manipulation of files and directories on a computer's filesystem.
- PCManFM — a powerful yet lightweight file manager application, default file manager of LXDE.
- Recommended applications — applications recommended for use in a graphical environment (X11, Wayland)