Qgtk3Style Theme engine is it broken? (opens in new tab)

So I came here while researching for the problems with qt5 theme. So in the archi wiki it says - 3.1 QGtk3Style This is a platform theme built into qt5-base starting with version 5.7.0 [2] and qt6-base. It can be used to style Qt5 and Qt6 applications according to current GTK3 style. It can be enabled by setting the following environment variable: QT_QPA_PLATFORMTHEME=gtk3. — I am on nixos and if i set the same envionment variable qt6 apps like pcmanfm-qt, qbittorrent correctly use the same c...