Yes, you can change the template on Wix. Wix offers a wide range of templates to choose from, and you can easily modify them by creating a new Wix site with your desired template applied and then copying its pages along with its new design and theme to your main Wix site. For a more comprehensive guide, you can click here.
Keep in mind that changing the template will affect your site’s overall design and layout, so it’s a good idea to preview and customize the new template before applying it.