Hi!
I've found this and I think it's a bug.
When I use ScrollSmoother and I need to call ScrollTrigger.refresh() (due to ajax loading, dom changes, etc.) the page "sometimes" it scrolls.
If you click on the buttons in the demo, you can see it.
You need to lick more times, scroll the page and so on.
It won't happen if the page is scrolled down to the end or at the top.