/usr/include/ is in libroot-tree-treeplayer-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o755.
..
/usr/include/root/
/usr/include/root/TBranchProxy.h
/usr/include/root/TFriendProxy.h
/usr/include/root/TTreeFormulaManager.h
/usr/include/root/TChainIndex.h
/usr/include/root/TTreePlayer.h
/usr/include/root/TSelectorEntries.h
/usr/include/root/TBranchProxyTemplate.h
/usr/include/root/TTreeTableInterface.h
/usr/include/root/TTreeDrawArgsParser.h
/usr/include/root/TSelectorDraw.h
/usr/include/root/TTreePerfStats.h
/usr/include/root/TBranchProxyClassDescriptor.h
/usr/include/root/TFormLeafInfoReference.h
/usr/include/root/TTreeFormula.h
/usr/include/root/TFriendProxyDescriptor.h
/usr/include/root/TTreeProxyGenerator.h
/usr/include/root/TRefProxy.h
/usr/include/root/TFormLeafInfo.h
/usr/include/root/TTreeIndex.h
/usr/include/root/TBranchProxyDirector.h
/usr/include/root/TBranchProxyDescriptor.h
/usr/include/root/TRefArrayProxy.h
/usr/include/root/TFileDrawMap.h