/usr/share/doc/python3-certbot-apache/html/_static/fonts/Lato-Regular.ttf is in python-certbot-apache-doc 0.23.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python3-certbot-apache/html/_static/fonts/../../../../../sphinx_rtd_theme/static/fonts/Lato-Regular.ttf