With Elementor you're capable of importing a page template or part of your template (Section). So you just insert a template into a page and don't need to create all sections one by one from scratch.
Inserting a Block template into your layout
You can insert a block template (section) by following the steps below:
1. In Elementor widget area, click on folder icon.
2. In Blocks tab, select a section template which you want to insert to your layout. As you can see there are different types of templates and you are allowed to insert whichever you want.
By clicking on Insert button the template will be added into your layout.
To preview a template before inserting, click the magnifying glass icon.
If you click on a heart icon, a template will be saved to "My Favorites" and you'll be able to find them quickly in My Favorites tab.
3. Once inserted, you'll see this section template on your page and can edit its elements to your needs.
Note: There is no difference between inserting a section and the whole layout template in Elementor. If you click on Pages tab, you'll be able to insert a page template with many sections inside. Just make sure your page is blank and no other content is added there if you want to import a whole page template, not just a block.
If you want to save your page as a template, refer to this article.
Note: The templates are loaded from JetElements, Elementor plugins and Jupiter X. Some of them require Pro version of Elementor, but you don't have to buy it as there are a lot of free templates you can choose from.