The default Magento 2 doesn't permit the administrator to include a header and footer the checkout page. Numerous Magento 2 storekeepers don't like to include a header and footer the checkout page as the clients might get occupied and it might bring about deferred changes.Nonetheless, there are many storekeepers who decide to add a header and footer to the checkout page moreover.
For example, in the event that a vendor has added a client care number in the header on the checkout page and on the off chance that a client has a question while buying an item, the client can straightforwardly contact and tackle his/her inquiry. You may likewise need to eliminate the default footer joins in Magento 2.
We should consider a situation where your client arrived at the checkout page subsequent to choosing a few things to his truck however presently he simply needs to shop more or alter a few things that he has in his truck. He can not move further without composing the specific URL in the program again as there is no logo and connections on the checkout page.
Allow us to comprehend the bit by bit strategy to add header and footer to checkout page Magento 2.
For more Info. visit: https://meetanshi.com/blog/add-header-and-footer-to-checkout-page-in-magento-2/