Hi ,
Have updated with 'pin' 'end' etc. Still extra height is there...
Here's the code for your reference.
// JavaScript Document
gsap.registerPlugin(ScrollTrigger, ScrollSmoother);
// create the smooth scroller FIRST!
let smoother = ScrollSmoother.create({
smooth: 2, // seconds it takes to "catch up" to native scroll position
effects: true, // look for data-speed and data-lag attributes on elements and animate accordingly
smoothTouch: 0.1,
normalizeScroll: true,
ignoreMobileResize: true,
pin: true,
end: '+=4000'
});