/usr/share/doc/fonts-texgyre/qtm-info.pdf is in fonts-texgyre 2.004.2-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/fonts-texgyre/../../texmf/doc/fonts/tex-gyre/qtm-info.pdf
/usr/share/doc/fonts-texgyre/../../texmf/doc/fonts/tex-gyre/qtm-info.pdf