Hide entries, and secondary suggestions

As I am new to Linux and generally open to explore what’s out there, I’d love to be able to “go shopping” in Discover, which would be way easier if there was a way to hide entries/even categories.
Maybe mark them with right-click/long-press and then have “Install” and “Hide” for all marked entries. (Moving them into a “Hidden” Category, to eventually unhide them)

Secondary suggestions:
Filter system, especially for “Installed” as there are no categories there
Hide installed things from the browser, or just “Home”
Option to open Discover into a blank page, as I’ve seen the “Most Popular” stuff a hundred times

I’m just rambling here, but thanks for listening, and thanks for everything you’ve done already! I am happy as is, those are just ideas to maybe itch you at the right time.