Interesting. So because Samsung chose to put 16GB in their phone it means that the OS actually need 16GB and it's pathetic? This logic of accusing Samsung, that it's given their users more hardware resources is quite strange to say the least. I think it's the jealousy talking. This is why so many users here resorted to 2014 style high megapixel camera hate comments, even if Samsung is using an all new camera sensor tech with pixel binning.12-16GB RAM? How pathetic that your mobile OS needs more RAM than a full-blown desktop OS (like Win 10) to run properly.
Anyway of course Android doesn't need 16GB to run properly. It doesn't even specifically need 8GB to run properly.
Also it's not 16GB of 2019 RAM, it's the first mobile phone to use the new generation of faster and more efficient low power RAM. Even the 8GB regular S20 should see some decent performance improvements from the faster LPDDR5 RAM. So it's not just about the quantity.