What is a Page Name?
A "Page Name" is a display name used to manage each page within a project. This name will not appear on the live site or in search results.
If you want to change the "Title" that appears in search engines or browser tabs, you can edit it from the site settings or page settings. For more details, please refer to the page's meta information.
Steps
Open the page panel and double-click the page name you want to change.
Edit the name and press Enter to save.