How to download Apple Screensaver App for Store Display?

So I’ve always admired the screensavers on Apple phones in their stores. They’re very simple, and I like them. However, I want to get them on my phone myself. I recently went to a store and found out it had this Screensaver app installed which was probably for those exact screensavers I’ve been seeing. It looks like this.

Is there any possible way to install this app on my phone?

Thanks!