I'm reading this on a non Chrome browser and I can search for it on a non Google search engine. I don't understand where the monopoly is.
For example, Bud Light being the official drink of the NFL.
Or Coca-Cola being the exclusive drink that can be sold at the Olympics and many other sporting venues.
Chrome has a 67% market share. You also missed the entire point of defaults being important.
Bud lights and coca colas activity isn’t enough to suppress competition. Google’s is, and the U.S. justice system clearly thinks so.