When you first start your camera there should be a place in the app that will tell you the activation date and time. Some insurance companies require that info. And that would be for all of your products.
[Mod Edit]Several Wyze cameras, including the original doorbell do show an activation date in their device info menu, but currently the “Doorbell Pro” does not.
Thanks for the confirmation, although I believed the OP and Mod who added the note. I just find it an odd omission from the standard. Puzzling how that could be missed from the template.