lastsplash (a11n)

Beginning with WordPress v6.3, a Details Block is included in WordPress. This plugin is no longer needed.
The block allows you to easily show and hide content using built-in browser functionality. It doesn’t load any external JavaScript and relies on native HTML functionality. You can configure the appearance using built-in editor controls.
It uses the HTML <code>details</code> element to show and hide the content.

Details: Show and Hide

Magda Sicknick

The plugin adds Details, Ingredients, Directions, and Source URL blocks for posting recipes.

Recipe Blocks

Easy to use blocks for posting recipes that include Details, Ingredients, Directions, and Source URL.

Details: Show and Hide vs Recipe Blocks