Google is set to go on trial in 2024 with the FTC. We'll see how that goes. I don't have high hopes, primarily due to how difficult it is to expect larger reach by adhering to past laws that are quite lenient. At most I can see AdX being negatively affected, but that wouldn't result in the substantial change most want here and would just allow another like Apple to step in and repeat what Google has done.
From what I understand, the arguments about self-preferencing kind of always get thrown out due to a more strict interpretation of the law. Did with Apple, and with Facebook when they were acquiring Instagram and Whatsapp.