App froze iPhone 17 running iOS

I downloaded an app that caused a problem on my iPhone 17 the app was free so it doesn’t seem to be available as an option to report it apart from going to the app website which I don’t want to do. The app opened and I could not close it, I could not get to the screens behind, everything froze on the phone so I had to restart the phone. I’m on the latest iOS 26.1 thanks