When comparing Deepin File Manager vs fman, the Slant community recommends fman for most people. In the question“What are the best file managers for UNIX-like systems?” fman is ranked 13th while Deepin File Manager is ranked 14th. The most important reason people chose fman is:
Windows, Mac, and Linux are supported.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Send files and folders to external drives just from the right click menu
Pro Supports natural sorting of file names
The only other file manager that supports this is Dolphin.
Pro Beautiful UI
Pro Written in Qt
Pro Responsive
Pro Has dark theme support
Pro Works on all operating systems
Windows, Mac, and Linux are supported.
Pro Simple to use
Pro Makes finding commands *by name* easy
Pro Slick
Cons
Con Distro-specific
Kind of in between nautilus and pcmanfm.
Con Extensions not supported
Currently it does not support script extensions. It would be more useful having plugin to integrate with Dropbox and git.
Con Lack of compact view mode
No compact view with small icons, labels to the right, and multiple dynamically sized columns. This is a standard UI idiom. What is their rationale to not support it?
Con No (text) file viewer
Con No explicit bookmark support for directories
It though remembers the visited directories and allows to search in this list in most-recently used order and by name.
Con Mainly for key-board-orientated users
The interface is most naturally navigated by arrows and keystrokes. The target market is software developers.
Con Has no menu bar
Hence it is not well suited for visually orientated users which find or remember commands by using a mouse and a menu. Even the fman's hero Sublime Text uses a menu bar.
Con Requires email address to download
Doesn't say what it will do with this data. It is in contrast to the new laws in Europe where only necessary information is allowed to be collected. A download should not require an email address.
Con Still quite buggy
So, for example, sorting only is remembered if triggered by command and not be clicking the table column header using the mouse.
Con Settings can't be found by the GUI
You need to know which files to edit.
Con Default dark theme
No choice between dull-dark or fresh-light.
Con No portable bundle available
On Windows only a net-installer is available.