Q[Core|Gui]AppForNonQtUsage should be forced static libs. They hold very few code and should be unique per app. In that case, check to remove some exports if not required.
OR, handle shared libs, but make default to static in Conan recipes ?
SEE: https://gitlab.kitware.com/cmake/cmake/-/issues/18935
See https://github.com/olivierlacan/keep-a-changelog
Try conan build requires cmake_installer[>=3.14]@conan/stable
Note: this should not affect when used as installed library
Add sanitizer options / support ?
Should add BUILD_USE_IPO_LTO_IF_AVAILABLE in CMakeLists.txt and turn it ON in conanfile.py See CppProjectTemplate