The iPhone camera has many features that allow you to take better pictures and record video.
One of the handiest features is shutting the shutter sound, which can be done by putting the phone in silent mode, enabling Live Photos, taking a photo whilst recording a video, or connecting headphones.
The Photographic Styles feature, available on newer models, allows you to take photos with a specific style, with options for tone, warmth, and skin tones.
You can also lock in your favorite camera settings, to ensure the camera does not reset to photo mode every time you close it.
There is also a setting where you can get reminders to clean your lens, which will help you take clearer photos.
Another feature is the ability to take GIFs, which can be done by using the Shortcuts app to create a shortcut on your phone.