You can select any WordPress theme according to your choice as these templates work with any WordPress theme. Here I am explaining steps using the Reign theme.
So for creating the page, follow the following steps: Navigate to Dashboard > pages > Add a new page, nowhere you will need to set the page title and template (element or full width).
After setting this, click on edit with elementor to insert the templates to your page.
Here you will find the Wbcom Designs logo, now just click on this logo to open the Template files.
Here you find the sections and pages. In sections, it includes contact, about, features, header, footer, faq, focus boxes, etc. You can set any section as per your requirement.
On pages, it includes BuddyPress, construction, fashion store, cosmetic store, jewelry store, digital agency, etc.
Note: If you are using the Elementor Pro plugin then you can insert elementor pro templates also.