A UX Designer needs to declutter the Highlights panel for a custom object's Lightning page.

Dynamic Actions are a feature that allows the UX Designer to customize the actions that appear on the Highlights panel of a Lightning record page based on criteria such as record status, user profile, or field value. This way, the UX Designer can declutter the Highlights panel and show only the relevant actions for each record. Dynamic Actions can be configured in the Lightning App Builder instead of the page layout editor, which gives more flexibility and control to the UX Designer. References:

Salesforce Dynamic Actions – Overview & Deep Dive Tutorial

Create Dynamic Actions in Lightning App Builder - Salesforce

Add Visibility Rules for Dynamic Pages - Trailhead