2. Most people don't understand the full extent of Web and App Activity permissions -- they don't understand that this will allow Google to do things like parse search queries out of DuckDuckGo searches on Chrome.
3. Similarly (until recently) most people didn't realize that Google was using email info for advertising, including purchases made at competitors. This is the reason why none of your Amazon purchase confirmations list the items you purchased any more. They didn't want Google to be able to read them. Also no way to opt out until enterprise pressure forced Google to eventually promise to stop using the data... for ads.
4. On the subject of Siri, Google's voice assistant was also responsible for giving recordings to 3rd party contractors without the ability to disable it, and most users weren't aware this was happening.
5. Until consumer backlash forced them to stop, Google Maps also aggregated user wifi network names. This would open the door to determine location information based purely on what Wifi networks were stored on your device.
> I'm sure it'll be easy, easier than downvotes.
The reason you're getting downvotes is because this stuff is really easy to research[0], and other commenters don't believe you're engaging in good faith -- they think you're just trying to waste their time by asking them to list out examples that are common knowledge. A downvote is much easier and faster for them.
[0]: https://en.wikipedia.org/wiki/Privacy_concerns_regarding_Goo...