In Magento 2 Pre-order module, the admin can display a pre-order product without showing it’s product availability date on the frontend.
If in case, the admin doesn’t want to the display the product availability date of a pre-order product on the front-end. Then, the admin will leave the Product availability field empty on the product edit page and save the configuration.
And on the frontend, it will not display the product availability date.
If you have any issue, please feel free to add a ticket and let us know your views at https://webkul.uvdesk.com