Recently I noticed that in Google Maps the coordinates is somehow deobfuscated when I am back in China. That means, you'll see the map differently when you are

Recently I noticed that in Google Maps the coordinates is somehow deobfuscated when I am back in China. That means, you'll see the map differently when you are inside China, though without a VPN Google Maps is not accessible. It is not accurate. Straight lines become curvy at a 5 to 10 meter scale. This is obvious when you look at airport runways. I haven't figured out what exactly leads to the different treatment from Google. I had too few opportunities to test it out. When I arrive at Germany it immediately shows wrong map of China. Another observation is that all the user-uploaded photos on Google Maps Community aren't accessible in China either.