While a lot of KDE packages already fully switched to Qt 6 and Kf 6, some still have some lingering dependencies while they could avoid it.
For example kup-backup allows it upstream: https://invent.kde.org/system/kup/-/blob/master/CMakeLists.txt?ref_type=heads#L51 Same for a few lingering dependencies in kdenlive. I opened bugs for that, hopefully maintainers will have a chance to look at it before the freeze. Regards, Shmerl.

