You may want to check this list and decide for yourself what it was about : https://www.theverge.com/2013/11/22/5135626/scroogled-micros...
I should add that i have not seen Google itself run such attack ads.
What I have always found strange is that the companies that seem to attack google on privacy are not so hot themselves. Microsoft's rifling through hotmail emails to catch a leaker, and Apple's handing over of iCloud data for Chinese users are examples of things Google has never done.
Microsoft : https://www.forbes.com/sites/kashmirhill/2014/03/28/microsof...
Apple : https://www.theverge.com/2018/7/18/17587304/apple-icloud-chi...