I love the Motion effect however even selecting both wallpaper and screensaver, on my Galaxy s8+, I still do not have the option. So odd, that it only allows the option for me with wallpaper photos in the wallpaper and themes app of settings.
I am not using a Nova Launcher, however I am not able to see the Motion effect as an option when selecting gallery pictures as wallpaper.. is there a way to upload a picture into wallpapers app/settings to make it an "official" wallpaper to provide the Motion effect option ?