The first page is mostly filled with "if you're not playing games, just using the www, 8GB is enough". But they date from 2016. It is now September 2018.
8GB is now barely enough. Because Chrome has become a memory hog. I've now switched back to Firefox. I have two computers with just 4GB. NOT enough for web browsing. Load just two sites with either Chrome or Firefox, and the hard disk LED just stay lit. For those, I switched back to Palemoon. Seems to work better.
On my main computer, I have 16GB. If I open too many sites in Chrome, I can get this one to use up all the RAM and cause the hard disk LED to stay lit.