WooCommerce

While all customer data are saved in a session in the block checkout, the classic checkout does only save the customer addressm, but not name, email, phone etc. Customers that leave the checkout page will have to fill in these data again which is very poor user experience. This is the default behaviour and was confirmed by the support team:
https://wordpress.org/support/topic/customer-data-not-saved-in-checkout/
This can easily fixed with a snippet, but should be a standard feature.