As a regular Super+V clipboard menu user, great change!
The popup is awesome, scrolling and searching is better than these foldable menus, and afaik we get all the fancy actions new too? These were only in the menu popup before.
Discover looks great! I would love to see Flathub verified badge integration, and the security rating for apps. The permissions in general were pretty hidden and seemingly incomplete, I prefer the warnings from Flathub, like for "insecure outdated windowing system", or most importantly "outdated runtime"