The easiest way to change the page title text (what appears in your browser bar) is to use an SEO plugin.
![Page title text](https://www.commercegurus.com/wp-content/uploads/2020/05/preview-edit-title.png)
The most popular are Yoast SEO and Rank Math.
Just install one of those and edit the page you want to change.
If you’re using Yoast, you’ll see a new panel at the bottom of the page when you edit it.
![Editing a page title with Yoast SEO](https://www.commercegurus.com/wp-content/uploads/2020/05/yoast-edit-title.png)
Simply click the title and edit the text. You should add a meta description for each page also, this appears beneath the title in search engine results.