What is the name of the huawei lock screen?

I've got a new cell phone (galaxy A70) on my old huawei mate 9, I had such a great feature that the background of the lock screen changes every time I lock my Huawei. So the background changes every time you lock. What's the name of this engine? I would like to transfer it on my new Samsung. Since both are Android, it should be possible?

There are lock screen apps. But without an app that will not be possible

Do you happen to know one?