Hi!
I am very sorry, I must have missed your ticket by accident.
The filters only reset if the page is re-loaded. The close icon on the pop-up screen only changes the visibility of the pop-up. The only possibility would be to attach an event to the clos icon to reload the page, but I don’t know if that would be a convenient solution.
Mobile device visibility
Try enabling this option here: https://i.imgur.com/uxJx7YU.png
It will force the results box to hover just below the search bar, for better visibility for the results.
Scroll bar
By increasing this height, the scroll bar will not be triggered: https://i.imgur.com/YOgQAvv.png
I hope this helps!