You can enable the native header and footer of the template on your checkout page.
Here's how to do it:
Step 1: Click on 'Edit' to edit the checkout page in Elementor
Step 2: Change the page layout
Go to Settings and change the page layout to "Default".
Once done, click on Update.
This is how your checkout page will look like with the native header and footer:
Well done! You've successfully enabled the header and footer for a template on your checkout page.