Intersection observer visibility trackingThe trackVisibility parameter for the IntersectionObserver constructor enables tracking the visibility of an element, to detect if it may be obscured by other content or visual effects. Also known as IntersectionObserver v2.limitedhttps://w3c.github.io/IntersectionObserver/#calculate-visibility-algointersectionobserver-v2https://nowyoucanuse.com/features--intersection-observer-v2.html