An exclusive contract with Apple/Samsung isn't great, but even Apple testified that they would not have accepted any other searcch engine because everyone else was worse. You can't make restrictions on what Apple is allowed to do because Google violated some law--if Apple wants to make Google the default, they should be allowed to do so! The ban on exclusive contracts makes sense though; they should not be allowed to use contracts to furthur their monopoly position.
And similarly with Chrome; it made no sense to bring Chrome into this equation. Google started, developed, and built Chrome into the best browser available today NOT through exclusive contracts, but because Chrome is just a better product. Users can switch to Firefox/Safari (Mac default)/Edge (Windows default); they don't because Chrome is better. Forcing Google to give up one of its best products is effectively eminent domain by the government to a private company.
With the rise of ChatGPT (I barely use Google anymore) and AI search engines potentially shifting the search landscape, who knows if Google will still be a monopoly 5 years from now. Software moves fast and the best solution to software monopoly is more software competition.