How to make sales order shipping Method as a mandatory field

Summary

Our requirement is to make shipping method as mandatory field in Sales order

Content

Requirement is to make shipping method field as a mandatory field in sales order page, I have enabled required check box through sandbox customization, in expression builder , given value as 'true', but still, If i submit the sales order without going to shipment details tab, system does not restrict users to enter shipping method, sales order get submitted though we have made the field as required field, If i click on shipment details, system does not allow to submit the sales order. is there anyway we can make shipping method as a mandatory field without going to shipment details