When a Drupal distribution is downloaded and put into place it seems to come with the distributers ownership and permissions.
Ideally in a VM the owner of everything needs to be Apache, so running a chown -Rvf apache:apache * from the root folder of the web site (usually /var/www/html in CentOS) looks like a good idea and habit to get into.
But now we have the Raspberry Pi for on premise that changes to chown -Rvf pi:pi * and the root is /var/www In Raspbian.