I had to go on a bit of a journey figuring out how to do anything useful with EasyEffects when I moved to Linux on my Microsoft brand laptop. I question the value of including it by default though. As the article notes, it's easy enough to install manually, and most people won't have any idea what to do to configure it usefully. Even after all my research and tweaking, my audio still has quirks that I don't even have the vocabulary for to be able to find fixes.