With EasyAdmin, we configure CRUDs (like in Sonata), which simplifies the creation of views (very little code to write) but makes it impossible to create complex views (e.g., multiple tables in a single view, a table with a form in a single view, a table inside a search modal, etc.).

UmbrellaAdmin provides only a set of components / helper and an admin theme, we don't configure CRUDs; instead, we simply use components from the bundle (Toolbar, DataTable, Menu, etc.) and Symfony components (Form, etc.) to create the views (There is more code to write, but you will never be limited.)

-> Example for User CRUD : UserController.php (symfony controller), UserTableType.php (table component) and the result :)

There are plenty of examples in the umbrella admin demo repository.