The orthodox file manager was created for copying files between two disks. File management on my phone still follows the same pattern: copy or move something between the phone's storage and, for example, an SFTP remote. The remote directories are pretty stable; it makes sense to bookmark them.
Meanwhile, on my computer one-off mass copying has become rare compared to the era of removable media. Most of my mass file operations are moving files to or from a subdirectory in a code project or renaming them. This is an awkward fit for an OFM: you need to go to directory A, duplicate its path to the other pane, switch to the other pane, and then navigate up or down a level to directory B. A dynamic "parent directory" or "../foo/" second pane might help.