/usr/ is in libkf5sysguard-dev 4:5.5.5-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5SysGuard/
/usr/lib/x86_64-linux-gnu/cmake/KF5SysGuard/KF5SysGuardLibraryTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5SysGuard/KF5SysGuardConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5SysGuard/KF5SysGuardLibraryTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5SysGuard/KF5SysGuardConfigVersion.cmake
/usr/include/
/usr/include/ksysguard/
/usr/include/ksysguard/ksignalplotter.h
/usr/include/ksysguard/ksgrd/
/usr/include/ksysguard/ksgrd/SensorSocketAgent.h
/usr/include/ksysguard/ksgrd/SensorAgent.h
/usr/include/ksysguard/ksgrd/SensorClient.h
/usr/include/ksysguard/ksgrd/SensorManager.h
/usr/include/ksysguard/ksgrd/SensorShellAgent.h
/usr/include/ksysguard/processui/
/usr/include/ksysguard/processui/KTextEditVT.h
/usr/include/ksysguard/processui/ksysguardprocesslist.h
/usr/include/ksysguard/processui/ProcessModel.h
/usr/include/ksysguard/processui/ProcessFilter.h
/usr/include/ksysguard/processcore/
/usr/include/ksysguard/processcore/processes.h
/usr/include/ksysguard/processcore/process.h
/usr/include/ksysguard/lsof.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5sysguard-dev/
/usr/share/doc/libkf5sysguard-dev/copyright
/usr/lib/x86_64-linux-gnu/libprocesscore.so
/usr/lib/x86_64-linux-gnu/libksignalplotter.so
/usr/lib/x86_64-linux-gnu/liblsofui.so
/usr/lib/x86_64-linux-gnu/libksgrd.so
/usr/lib/x86_64-linux-gnu/libprocessui.so
/usr/share/doc/libkf5sysguard-dev/changelog.Debian.gz