Mage-OS PageBuilder Widget module (part of the Mage-OS release since 2.0 version) allows the user to specify CMS widgets and the related configurations inside a dedicated PageBuilder component named "CMS Widget". As for all PageBuilder components, this component is draggable and can be placed inside other components. The main feature of this module is the ability to configure widgets and see a preview on the PageBuilder.
In terms of developer experience, this module is an enhancement that eliminates the need to develop PageBuilder dedicated components and understand all the stuff behind it (UI Components, PageBuilder inheritance logic, preview vs actual frontend representation).
The main goal of the module is to simplify the development, customization and usage of PageBuilder UI components, relying entirely on CMS widgets (that are pretty easy to use).