"Nav Priority" is the Bolt Design System's web component implementation of the Priority+ Navigation Pattern.
Typically (but not exclusively) used in the <bolt-navbar> component, this component displays a collection of navigation links in a row when the container, not the screen size, fits the content. As individal links no longer fit, these get progressively added to a dropdown menu automaticaly, making for an extremely resiliant and flexible navigation pattern.
Heavily inspired by Container-Adapting Tabs With “More” Button.