It does help them get snow or dust away from food. The upper lip of a horse is very flexible and if you’ve ever been with a horse you might think it has similarities to an elephant’s trunk. The hair can be used as a brush to clean away whatever is obstructing their food.
I’m using Ente. It’s nice but their apps are still buggy. Also Ente is better used when using tags for your photos instead of folders. Sucks if you have everything in folders