Hide <all other values> from a legend in ArcGIS Pro?

Summary

By default, the 'Show all other values' setting is enabled when symbolizing a feature layer. This setting displays all available values in the selected symbology. Disabling the <all other values> setting amends the legend to display only the unique feature symbology. This article highlights the steps to do so.

Procedure

1. In the Contents pane, right-click the layer. Select Symbology.

2. In the Symbology pane, ensure Primary symbology is set to Unique Values.
3. Under Classes, click More.

4. Uncheck Show all other values.

The image below shows that <all other values> is not displayed in the legend in ArcGIS Pro.