Now you can change all users slug in WordPress so easily. And I’m going to tell you about how can you do this within seconds. Change All Users Slug is a WordPress plugin that adds your first and last name in the slug URL. This Change All Users Slug plugin is developed to help you change all your users slug in /firstname-lastname/ in lower case format.
It’s suggested to have a manually defined Display Name instead of having the same “Display Name” as the “Username”, check out how to do this. If you want to use your username (login) for your user slug, then you don’t need this plugin.