I had a demo built for something similar to what I think, you want to achieve, in this thread:
I polished it up a bit, later on, and just now, added a new part to it.
That might resemble the part of showing the relevant content, as you referred to.
Unfortunately, I don't have much time to try and see, if or how it could work with your code-base, but maybe this could serve as inspiration for you at least.
Cheers,
Paul
Hi, everyone i need some help with this example, how can I leave the last element active after the end of scrolling
ScrollTrigger change content when element is active
in GSAP
Posted
Hi, everyone i need some help with this example, how can I leave the last element active after the end of scrolling