This Lockscreen Wallpaper Trick is the best!

This trick on your Galaxy S9 and Note 9 will allow you to have a video as your Lockscreen Wallpaper.

Here’s how to do it.

1. On your Galaxy S9/Note 9 go to the Gallery app
2. Next choose a video. 
3. Click the 3 dots in the top right and choose Set as wallpaper
4. If the video is longer than 15 seconds you will need to edit it otherwise choose SET AS WALLPAPER

That is all you have to do to have the coolest lockscreen wallpaper.