/usr/share/doc/libtrilinos-thyra-dev/changelog.Debian.gz is in libtrilinos-thyra-dev 12.4.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libtrilinos-thyra-dev/../libtrilinos-kokkos12/changelog.Debian.gz