SUMMARY As it says on the label: $ apt policy libqt5core5a libqt5core5a: Installed: 5.15.5+p22.04+tunstable+git20221010.1629-0 $ dpkg -L libqt5core5a | grep libQt5Core.so /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.15.6 /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.15
this issues seems to have been only relevant for Qt 5.15.5 - which is no longer the current supported version. The current Qt5 version seems unaffected