1. Go to Settings>Accessibility>Motion
2. Turn on Reduce Motion
3. Turn on Prefer Cross-Fade animations. This step is important if you want the cross-fade animation to be system-wide. This option was not available in iOS 12.
Following These steps will give your iOS device a fresh feel. This Cross-Fade Animation will be system-wide and can be seen while going into the Sharesheet, back-swiping in pages and in many other areas. Hope this tip helped you refresh your iOS device.