9to5Mac published a tutorial about hidding photos from the library in the Photos app.

iOS 14: How to hide photos from the library in the Photos app

For years, iPhone and iPad users have been asking for ways to hide pictures from the main camera roll in the Photos app. Apple has finally gone some way to addressing this feature with iOS 14 thanks to a new Hidden Album toggle.

iOS 14: How to hide photos from the library in the Photos app - 9to5Mac