Good on ya.
I won't use it, myself, because I can't deal with wallpaper moving behind my work (I also can't listen to music, while I work. Maybe it's a "generational" thing). Also, I use a 49-inch ultrawide, so it might be vomit-inducing.
I remember some other utility that played wallpaper videos, but it wasn't anywhere near as nicely done.
It doesn't move while you work, its just the lock screen and when you log in.
Which generation is that? I'm a Gen Xer. I can't work without music, but specific music without lyrics for my brain to try to follow.