Hi, this is not a bug in Qt but rather a deliberate change in Qt 6.10.
Since Qt 6.10, linking against private Qt targets requires finding these first via find_package() when using CMake, see https://doc-snapshots.qt.io/qt6-dev/whatsnew610.html#build-system-changes and e.g. https://doc.qt.io/qt-6/qtguiprivate-module.html#details. I'll clone and reassign this bug accordingly. -- Med vänliga hälsningar Patrick Franz

