How does Webflow manage to smooth forward the timeline?

It’s been almost a year since I opened a thread similar to this one:

Since then, I haven’t figured out how to solve it, maybe I didn’t ask correctly, so…

How does Webflow manage to interfere by smoothing the advance in the timeline with the scroll?
Not worth answers about smoothing scroll :smiley:

It has a specific option to smooth lottie: