In the case of Chrome, I imagine it's because Google has used its control over Chrome to add built in user tracking that reports only to Google, while simultaneously seeking to remove access to the cookies that Google's advertising competitors must have access to in order to compete.

Do anticompetitive things, win anticompetitive prizes.

Probably because the entire world gets its information through Chrome, and since Chrome is becoming increasingly anti adblock, the danger is that billions of people will now be force fed ads.

Besides, plenty of governments had similar hard-ons against MS & IE in the early 2000s, people just have very short memories in the digital age.

> Apple / Microsoft / Amazon / … skate by without getting the same beat-down.

Their time will come. Defending something bad by pointing at others and saying they are also doing it is typically low-effort reactionism.

There are ongoing antitrust lawsuits against Apple, Amazon, and potentially one coming for Microsoft Cloud business.

In any case, this is more whataboutism than anything. The fact that you perceive others as not being targeted doesn't mean that nothing should be done about Google's monopoly on Search.