Closing as per reporter request. @Yvan in general if you’d like to see additional man pages for KDE software (which you should :), I’d suggest doing that work upstream directly. Better if you can send them merge requests to their GitLab platform even : https:// invent.kde.org/ The Qt/KDE team in Debian doesn’t have the manpower to create and even less maintain manpages so that they stay relevant and useful.
Happy hacking ! -- Aurélien