Can Frontity consume layouts from WP Backoffice

Hello, I’m considering using Frontity as a front-end framework for my wordpress applications. I’m new to the headless CMS concept, but from what I read Frontity is consuming wordpress as a headless CMS, which means wp generates bunch of APIs for the Frontity framework to use and that is awesome, but I wonder what if there are some other things that need to come from the back office, like layouts, banners, other visual customization that are set from a non technical person. Is this possible with the headless CMS approach, or every visual change MUST be handled in the Frontity project by the react dev?