@victorofhavoc commented here it is not a good idea https://www.golfmk7.com/forums/index.php?threads/hood-vents-really-work.337622/page-2#post-7622561
I thought removing that rubber strip would allow hot air escape from the the engine bay.
I'm running for a few months a Xiaomi 70Mai Pro dashcam, and it's ok until now. It was easy to install even for a non-DIY guy like me, it's powered by the 12V-USB adapter that came with the camera.
I haven't recorded anything exciting to show up here but I'll share a sample just for reference:
People here like to choose "traditional" colors for their cars: black, white, silver; it's very boring to walk in the parking lot and find only these colors. When I bought mine 3 years ago I tried to break this car color scheme :D