Looking for logging into the Update User Name Wordpress site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Update User Name Wordpress site. After that you can login as usual with your login credentials.
https://themeisle.com/blog/change-wordpress-usernames/
https://codex.wordpress.org/Function_Reference/wp_update_user
https://wordpress.stackexchange.com/questions/103504/how-to-programatically-change-username-user-login
https://www.wpbeginner.com/wp-tutorials/how-to-change-your-wordpress-username/
https://stackoverflow.com/questions/46972779/unable-to-update-an-username-in-wordpress
https://de.support.wordpress.com/change-your-username/
https://www.ionos.de/community/websites-e-shops/wordpress/so-aendern-sie-ihren-wordpress-benutzernamen-und-ihr-passwort/
https://kinsta.com/knowledgebase/change-wordpress-username/
http://www.inmotionhosting.com/support/website/wordpress/change-wordpress-admin-username-for-security
https://en.support.wordpress.com/change-your-username/
https://www.a2hosting.com/kb/installable-applications/optimization-and-configuration/wordpress2/changing-a-wordpress-account-username
https://www.enginethemes.com/change-wordpress-admin-username/