Yeah, so Gnome has an extension called Night Theme Switcher which automatically changes your background, icons, theme, cursor etc. based on a user-defined day/night schedule. It works great.
Arc Menu is another extension which gives Gnome a standard start menu (since it doesn’t come with one by default) in the top lefthand corner. It also comes with a KRunner-like app launcher that pops up in the middle of the screen instead of using the default Gnome Overview UI.
Both these extensions make Gnome feel a little more natural for desktop use, IMO.