This meta bug is used to track aspects specific to the kf6 VCL plugin. See also meta bugs for qt6 (tdf#145734), qt5 (tdf#125943) and kf5 (tdf#102495).
Issues also reproducible with the qt6 VCL plugin should rather be set as blocking for the qt6 VCL plugin meta bug (tdf#145734), not this one.