Most of users use Krusader as user privileges. But very often they needs to do some file operations with root privileges (one time), so starting new copy of Krusader from root is too expensive. Will be good to see an option "With root privileges" in file copy dialog and maybe in other file operation windows. Another way is ability to open tabs with root priveleges and all operations in it will done with root priveleges.
Can this get another look with the new KIO Admin (https://invent.kde.org/system/kio-admin)? KDE is moving away from running GUI apps with `sudo` (or even `kdesudo`), and Krusader should follow suit. Other than copy, another action that needs temporary root access is folder sync, when some of the files are only readable by root. This should ideally request authorization when needed, rather than showing endless "cant read this" errors.