Several packages have been stolen from in front of my ring doorbell cam. I know it works because it sends me motion alerts 16 times a day, records the packages being dropped off yet somehow stops working for 10-15 minutes right when my packages are being stolen. I have to assume the I have a way to stop the cam from recording while they are stealing my packages.
You assume wrong of course.
All a thief has to do is run up to your porch, grab the item, and run off. Your doorbell takes a few moments to wake up and it is possible for them (or anyone) to avoid the timing of the cameras.