WP SMTP Mail Settings for Multisite in wp-config

I want to use WP SMTP mail on multisite. I found I page from 2015 that gives settings that you can put in wp-config.php.

Is this still accurate?

define('WPMS_ON', true);
define('WPMS_MAIL_FROM', '[email protected]');
define('WPMS_MAIL_FROM_NAME', 'My WordPress Multisite');
define('WPMS_MAILER', 'smtp'); // Possible values 'smtp', 'mail', or 'sendmail' 
define('WPMS_SET_RETURN_PATH', 'false'); // Sets $phpmailer->Sender if true
define('WPMS_SMTP_HOST', 'smtp.gmail.com'); // The SMTP mail host
define('WPMS_SMTP_PORT', 587); // The SMTP server port number
define('WPMS_SSL', 'tls'); // Possible values '', 'ssl', 'tls' - note TLS is not STARTTLS
define('WPMS_SMTP_AUTH', true); // True turns on SMTP authentication, false turns it off
define('WPMS_SMTP_USER', '[email protected]'); // SMTP authentication username, only used if WPMS_SMTP_AUTH is true
define('WPMS_SMTP_PASS', 'ThePasswordGenius'); // SMTP authentication password, only used if WPMS_SMTP_AUTH is true

Is there official documentation somewhere that details these constants and their options? Can individual sites in the network override these constants?