Your page-one position is below the fold before any user scrolls.
In many competitive Australian search categories, a Google results page now begins with an AI Overview that takes up a significant portion of the screen. Below it sits a "People Also Ask" section. Below that, sponsored results. Organic listings — including your position-one or position-two page — do not appear until the user has already scrolled through two or three screen-lengths of generated and paid content. Your ranking has not moved. Your page's visibility has collapsed.