EXIF information is normally included in photos created on modern digital cameras; it is written into the image file automatically and provides a record of camera details, exposure settings, aperture settings, author/copyright, and more, from your image. In Affinity Photo, this information is displayed in the EXIF panel.
The EXIF panel is available from the Photo and Develop Personas; for the former, it can be switched on via View>Studio; for the latter, it can be expanded into view by clicking 'EXIF' at the very bottom right of your workspace.
The following panel options are available: