Why can’t you view all historic footage

Please can someone tell me why I can’t view ALL footage and instead you can only view events where the camera has picked up motion? The whole point of a security camera is to have the ability to go back to a certain date and scroll through all the footage. If someone breaks in to my house and I have a ring doorbell I literally get to view a few seconds and that’s only if they set the camera off. Am I missing something or is the ring doorbell really just that rubbish it doesn’t allow you to view the full footage from a full day?