Disable translations update on module enable
I was able to disable update by:

&lt;?php

/**
 * Implements hook_module_implements_alter().
 */
function MY_MODULE_module_implements_alter(&amp;$implementations, $hook) {
  if ($hook == 'modules_installed') {
    $moduleHandler = \Drupal::service('module_handler');
    if ($moduleHandler-&gt;moduleExists('locale')) {
      unset($implementations['locale']);
    }
  }
}

/**
 * Implements hook_modules_installed().
 */
function MY_MODULE_modules_installed() {
  $moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler-&gt;moduleExists('locale')) {
    locale_system_set_config_langcodes();
  }
}