The photos widget on iPhone livens up the home screen with your favorite pictures. The only problem is there are probably some images in the Photos library that won't look great on the home screen. Luckily, with iOS 14 and later omitting some photos from the home screen widget is easy. Photos can be removed immediately when they appear, or hidden ahead of time.
Widgets are one of the most noticeable and popular new features of iOS 14. They allow you to personalize your Home Screen like never before. In fact, with the new App Library, your Home Screen can take on an entirely new look, filled with widgets and completely devoid of apps. iOS 14 also lets you customize your app icons but alas, for some reason they have not yet added the ability to customize your widgets, other than their size.