The game is structured. If Google lose, they face an affordable fine or mandated adjustment to a single business practice. In this case, the business practice is "OEM Search Deals" which has been litigated before. The practices is profitable and strategic enough to take the heat.
IMO, antitrust was entirely declawed by the "US vs MSFT" settlement in 2001. It's a similar case. An operating system with 90% market share using their position to dominate key parts of the application market. We now know this as the "platform strategy." Something that investors demand from CEOs, as opposed to a legal risk to avoid.
For the young.... "US vs MSFT" was the high profile case(s) of the 90s. Software was known to be monopoly prone and the case was expected to reveal what was and wasn't allowed.
MSFT litigated similar antitrust cases in the early 90s, and settled. The key term of this era was "bundling." MSFT concluded that antitrust was a cost of doing business. MSFT continued bundling to reserve key application markets for itself. Gates rubbed it in. DOJ took offence and went on a warpath.
DOJ pursued real antitrust. MSFT was found guilty of monopolism and the court actually ordered a "breakup." Seems far fetched today. The model for monopoly "breakups" was the 80s breakup of Bell (telcom). Shock! Insanely aggressive by today's standards. We can't even conceptualise how a breakup of a big tech today would work.
Anyway... doj flinched. They settled the appeal. OEMs were freed from MSFT exclusivity. Real antimonopolism was off the table, and never returned.
I don't really blame them. Breaking the monopoly of a tech giant could, and likely would, decimate their value. Bell was a telcom. Physical and concrete. WTF does "breaking up Google" actually mean? How can a judge do this task.