Please check below WPBakery articles for more information
https://wpbakery.com/video-academy/use-templates-wpbakery-page-builder/
https://wpbakery.atlassian.net/wiki/spaces/VC/pages/524292/Templates
Notes: If you want to use WPBakery Page Builder default templates then you need to purchase separate license of WPBakery page builder plugin and activate it because WPBakery page builder do not allow to use their default templates for theme bundled WPBakery page builder plugin.