Which directory contains additional information about installed packages?

/usr/share/documentation is not a path defined by the FHS and is not used by standard Linux distributions.

/usr/local/share/documentation is not a standard path; /usr/local is reserved for software installed manually outside the package manager.

/usr/local/doc is not the standard location; documentation for manually installed software may optionally land in /usr/local, but this path is not canonical for package-managed software.

The FHS specifies /usr/share/doc as the directory for architecture-independent documentation installed by packages, including changelogs, copyright files, READMEs, and examples. Package managers such as apt and rpm populate subdirectories here (e.g., /usr/share/doc/packagename/) when a package is installed.

/usr/packages/doc does not exist in the FHS and is not used by any standard Linux distribution.