I'd also suggest to add a search system by URL. E.X: Domain/search?=Key
Because when i open it on my phone it will take munites to liad and type in the current search bar.

You should add a Go Down button, usually it is annoying to keep scrolling down, even for a few seconds. Maybe just rotate the "Go back to top" button by 180 degrees and align to left side, and anchor to bottom of page.