Applying javascript scroll effects to site

Design help Custom code
1

Does anyone know how to apply some cool JS effects to my site from websites like these, preferably the first link is what I aim to use more so;

https://codyhouse.co/demo/page-scroll-effects/rotate.html

2

Fullpage.js step by step set up

How to do this webflow geniuses? Full-Screen lock

Fullpage.js scroll effect