Priority Hints are used to indicate to the browser the relative priority of a resource. I take a deep dive into how you can improve your Largest Contentful Paint by using fetchpriority.

Priority Hints are a newly released browser feature, currently available in Chrome and Edge, that give web developers the option of signaling relative load-time priorities of significant page resources. These hints are declared by way of a new "fetchpriority" attribute in the page's HTML markup and are relatively easy to apply.

Priority Hints fill the gap of prioritising resources that the browser already knows about against each other.