Text and Background Resizing on iOS Due to Address bar shift

https://www.gallerymilmar.com/

In a number of iOS browsers(edge, firefox, brave) when you scroll up and down, causing address bar to shift, some elements on website also shift. It seems to affect vh based sections and headings. I need css/js fix to preserve elements' size when mobile scroll occurs. I managed to achieve it by forcing the address bar never move, but thats a crappy approach and I have it currently disabled. I haven't seen a single non-squarespace site that suffers from this. I am running sq 7.1 with fluid engine activated everywhere.