How many tabs do you use per server?
But yeah, in one server we can fit hundreds of browsers, or even thousands if we use bigger servers. And each one of them with dozens of tabs, no issue
Say you're using a m8i.large (2 vCPUs, $0.043/hr on spot pricing). Is the article saying you dedicate a whole physical core to one browser or am I totally misunderstanding here? If so, are you taking a loss on every browser hour?