null app

Recently I was deleting some apps to free some space. Everything went smooth, until I moved one app while deleting it.

That’s when the (null) app popped out. It’s moveable and you can remove it from the Home Screen. It doesn’t show anywhere in Settings or in search results. However, it’s possible to find it when browsing App Library.

I’m using iPhone 7, iOS 14.4.2.

What is it and what can I do with it?