The menu drawer could also be called the "mobile menu". It is the main navigation that a visitor sees when they click on the "hamburger" three line icon on skinny screens, like mobile phones.
There are few options you can configure in the section's settings:
Select a menu from the Navigation to display here. It will most likely be the same as the Navigation menu you choose for the site header. By default it is the "Main menu".
This is a good place to put a physical address, phone number, or another form of contact. Leave this field blank to not show anything here.
Show social media icons
Check this box to show your store's social media links as icons. For more details on how to add social media links, see Social media.