Google decides whether a site gets the label based on metrics from Core Web Vitals, an initiative it launched earlier this year that helps site owners measure factors such as loading times, responsiveness, and the stability of content as it loads, allowing them to make improvements where needed.
https://www.techspot.com/news/86416-chrome-android-label-sites-load-quickly.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/86416-chrome-android-label-sites-load-quickly.html?utm_source=dlvr.it&utm_medium=blogger