data set table to save the Magento 2 store information can be made utilizing two strategies. One of the techniques to make another data set table in Magento 2.3 is with the db_schema.xml document.
The post tells the best way to create schema file to create new database table Magento 2.3.
For more info: https://meetanshi.com/blog/create-schema-file-to-create-new-database-table-in-magento-2-3/