By now, you know that Drupal works with the two directories
staging. But what is the intention behind those directories? And how do we use them?
The configuration used by your site is called the
active configuration since it's the configuration that is affecting the site's behavior right now. The current (
active) configuration is stored in the database and direct changes to your site's configuration go into the specific tables. The reason Drupal 8 stores the active configuration in the database is that it enhances performance and security. Source: https://www.drupal.org/node/2241059.
However, sometimes you might not want to store the active configuration in the database and ...