Here are two instances:
Google was (and probably still is) tracking your location on Android even when you turned off location services and storing it against your account.
Google signed you in automatically into Chrome whenever you signed in to a Google property. This change removed the ability to keep your Chrome browsing data strictly locally. After some Internet outrage, this was reversed.
They are the pioneers of https://en.wikipedia.org/wiki/Surveillance_capitalism
For specific technologies: Their search engine. Their Ad network. Google Maps / StreetView. Android OS. Google Home. Google Nest. Google Chrome. Chromebooks.
Some people would consider tracking users across the entire web and selling ads based on their behavior to be disrespectful of privacy. Google hasn't had any big fuck-ups like Facebook with CA, but ultimately they both are advertising companies that owe their success to selling personalized ads.
One shows ads along side search results based on what you are looking for... FB snoops on me and shoves cereal ads at me like street corner flyer pushers.
If you’re using Android, Google has been snooping on you a lot more often than Facebook could dream of.
But besides that, any time someone clicks an ad, Google gives information about that person to the advertiser.
When you buy a shoe with your credit card at a store you are giving your personal information, isn't clicking on an ad similar?
...except for all the times when Google did collect and store your information despite you telling it not to (look online for location tracking on Android).
With Facebook you just cannot be an anonymous user.
What breach of privacy is Google guilty of?