Elio Rivero

ILC Folding works with parent/children hierarchy of the Pages Widget. It will progressively reveal the children of each parent page. When you visit a page that has children, they will be reveal, keeping the next level children hidden. 
You can see a demo at 
http://www.ilovecolors.com.ar/ilctest/ 
Visit Page 2 to see their children. Child Page 2.1 works too.

ILC Folding

Creates a folding menu for WordPress built-in Pages Widget.

onodev77

This plugin adds a widget that allows you to display a list of WordPress pages in a sidebar or widget-ready area. It offers two display modes:
<ul>
<li>Manual Selection: Choose specific pages to display using a paginated selector.</li>
<li>Latest Pages: Automatically show the most recently published pages (customizable number).</li>
</ul>
It is designed for usability and supports both the Classic Widgets interface and the Block-based Widget Editor introduced in WordPress 5.8+.
Features: 
* Choose between showing the latest published pages or manually selected ones. 
* Paginated page selector in the admin interface for easy manual selection. 
* Supports unlimited pages. 
* Fully compatible with Block Widgets and Classic Widgets. 
* Lightweight and simple to use.

Custom & Recent Pages Widget


Unique plugin to display recent or custom pages in widget. 


Pages, not Posts

A flexible widget to display selected or latest pages, with optional pagination. Compatible with both Classic and Block Widgets.

ILC Folding vs Custom & Recent Pages Widget