/etc/apache2/ is in plinth 0.24.0.
This file is owned by root:root, with mode 0o755.
..
/etc/apache2/conf-available/
/etc/apache2/conf-available/cockpit-freedombox.conf
/etc/apache2/conf-available/coquelicot-freedombox.conf
/etc/apache2/conf-available/deluge-plinth.conf
/etc/apache2/conf-available/freedombox.conf
/etc/apache2/conf-available/ikiwiki-plinth.conf
/etc/apache2/conf-available/jwchat-plinth.conf
/etc/apache2/conf-available/matrix-synapse-plinth.conf
/etc/apache2/conf-available/radicale-plinth.conf
/etc/apache2/conf-available/repro-plinth.conf
/etc/apache2/conf-available/searx-freedombox.conf
/etc/apache2/conf-available/syncthing-plinth.conf
/etc/apache2/conf-available/tahoe-plinth.conf
/etc/apache2/conf-available/transmission-plinth.conf
/etc/apache2/conf-available/tt-rss-plinth.conf
/etc/apache2/includes/
/etc/apache2/includes/freedombox-auth-ldap.conf
/etc/apache2/includes/freedombox-single-sign-on.conf
/etc/apache2/sites-available/
/etc/apache2/sites-available/plinth-ssl.conf
/etc/apache2/sites-available/plinth.conf