So this is being made with something like: https://alvarotrigo.com/fullPage/#page3
You could make something similar to this in Webflow using the “While Scrolling in View” interaction trigger:
You can also integrate Webflow with fullPage.js: https://www.youtube.com/watch?v=w9TGl2Zgx58
There are a few things going on that might be tricky to implement such as the letters spreading on hover, they are probably using something like GSAP SplitText for that and the countdown timer hover effect, which would be relatively simple jQuery.
I think you could get most of the way there following the fullPage.js demo link and using the scrolling in view interaction. It’s not the easiest thing, but will be easier with Webflow versus coding it all
EDIT: Just re-read your original post and saw you tried to implement with fullPage.js. Were you able to get the demo working that Nelson was showing in the webcast? There are also other posts around the forum on implementing it. My recommendation would be to start simple, just get the full page scrolling working first, then start adding in elements, like the large text and then the floating images. One step at a time.
Hope that helps,