We are not using Content Management System (CMS) frameowrk. We use only pure HTML, CSS, JavaScript with the help of ReactJs/Angular/Vuejs Framework.
Our aim is to make sure that customers should not depend on any third party tool or plugin service.
If you opt to use the Content Management System framework, it will help you manage content without much effort and expertise. However, they are not fit for including any business workflows or operations. And so, in the long term, you need to go with HTML, CSS, Js using React/VueJs/Angular framework instead of Content Management System.