/etc/fonts/conf.d/58-dejavu-lgc-serif.conf is in fonts-dejavu-core 2.34-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /etc/fonts/conf.d/../conf.avail/58-dejavu-lgc-serif.conf
/etc/fonts/conf.d/../conf.avail/58-dejavu-lgc-serif.conf