You're mixing up antitrust cases. The 2020 case [0], decided in August and going into remedies in a week or so, was about search. This one is about advertising [1], a separate market that the DOJ has argued Google has also been acting anticompetitively in.

Aside from that:

> now AI is taking over, which will further weaken their grip.

Maybe you've missed that they're pulling ahead of OpenAI on the AI front?

[0] https://en.m.wikipedia.org/wiki/United_States_v._Google_LLC_...

[1] https://en.m.wikipedia.org/wiki/United_States_v._Google_LLC_...