I wasnt able to find many people posting about this specific style of backup camera so I thought I give some info. Its the License Plate Light Backup Camera from AliExpress or other Chinese company product. I bought it to avoid drilling any holes into the car even if its the just the trunk garnish piece.
This what the camera looks like (not my car, from aliexpress):
Link for the camera I purchased:
https://www.aliexpress.com/item/32831516871.html
For the price of the camera($20), I am very pleased with the quality. One downside of this camera, there small LEDs on them and due to the stock head unit requiring the camera to always be on, the lights on the camera stay on even when driving. Haven't thought of the best solution yet other than covering with black electrical tape.
I paid for the install as I could not quite figure out the wiring of this compared to other OEM tutorials. I am happy to try and answer any questions you have though.
Heres a short video I made displaying the camera quality, how it looks, how the camera lights look when car is on, and camera in reverse being used during daytime, night time, and in a parking garage: