Qt still does release update for the Qt6 serie. Qt5 is basically discontinued even for commercial users and KDE has a collection of patches from Qt6 which also

Qt still does release update for the Qt6 serie. Qt5 is basically discontinued even for commercial users and KDE has a collection of patches from Qt6 which also applied for Qt5 here: https://invent.kde.org/qt/qt/ https://invent.kde.org/qt/qt/ which most distributions are using.