Ring Solar Panel for Ring Doorbell Pro discontinued?

Was wondering if the solar panel for Ring Video Doorbell 3, Ring Video Doorbell 3+, Ring Video Doorbell 4, and Battery Video Doorbell Pro was discontinued. Can’t locate it on the website but I see it on the Amazon store page however it says the product is temporarily out of stock and a solar charger will not work for me since the doorbell is under a shade so no sunlight will come to it. I’m not looking to hardwire as the property is a rental and would prefer little to no drilling. Would the ring usb c solar panel work with the doorbell at all since the doorbell itself has a usb c charging port or are there any other options apart from the solar charger.