The first argument of i18nc is the context ( https://techbase.kde.org/Development/Tutorials/Localization/i18n#Adding_Context_with_i18nc() ). The strings seem to be interchanged at https://invent.kde.org/plasma/xdg-desktop-portal-kde/-/blob/master/src/screencast.cpp?ref_type=heads#L297 , leading to the context string being shown as the label in the application.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/xdg-desktop-portal-kde/-/merge_requests/330
Git commit 276fd3963c51c6407775eccab196e91b896f7298 by Nicolas Fella. Committed on 24/11/2024 at 18:37. Pushed by nicolasfella into branch 'master'. Fix i18nc usage The context is the first arg M +1 -1 src/screencast.cpp https://invent.kde.org/plasma/xdg-desktop-portal-kde/-/commit/276fd3963c51c6407775eccab196e91b896f7298