Avoid Automatically Login After Registration

You can use below code snippet to avoid automatically login after the registration.

add_action('init', 'nua_logout_pending_denied_users');
function nua_logout_pending_denied_users(){
$user = wp_get_current_user();  
if ( $user instanceof WP_User && !empty($user->ID) && is_array($user->roles) && !in_array('administrator', $user->roles)){

$user_status = get_user_meta( $user->ID, 'pw_user_status', true );

if ( 'denied' == $user_status || 'pending' == $user_status ) {
wp_logout();

// custom URL to redirect after logout
wp_safe_redirect( home_url() );
exit();
}
}
}