If you read the URL, you'll notice that this chart is from 2012. Chrome is now at version 81.<something>; safari is at version 11.1.2 (at least on my mac), and firefox is version 76.0.1.
I have all 3 on my laptop; I have to use chrome for some things; and some other only function on safari. I do the bulk of my browsing with firefox and have not had an issue, but I tend to keep very few pages open at a time.