Found a Reddit community for Samsung Galaxy Note 10 wallpapers. There are beautiful wallpapers available for your phone.
After seeing a tweet from @UniverseIce i was looking for that maze wallpaper. So if you like the maze wallpaper you can get it from this link
Adding few more wallpapers below which i found interesting, it includes punch hole Cut out wallpapers for Galaxy note 10 & Note 10 Plus.
Marvel Comics Wallpaper collection for Samsung Galaxy Note 10
Game of thrones Wallpapers
You can find more wallpapers here