Hello,
Some of the WP Bakery page builder elements have the option align: center, for example, Custom heading, single image, some of them do not. In case, element do not have the option to be aligned in the center, you can assign a class and write the CSS in the custom CSS of the theme. Our documentation does not contain instructions cause it relates to WP bakary page buider https://kb.wpbakery.com/docs/learning-more/content-elements/
Best Regards
Best Regards