alt Hacker News> Auto completing a sentence for the next word in Gmail/iMessage is one example
Interestingly, I despise that feature. It breaks the flow of what is actually a very simple task. Now I'm reading, reconsidering if the offered thing is the same thing I wanted over and over again.
The fact that I know this and spend time repeatedly disabling the damned things is awfully tiresome (but my fault for not paying for my own email etc etc)
I've been using Fastmail in lieu of gmail for ten or eleven years. If you have a domain and control the DNS, I recommend it. At least you're not on Google anymore, and you're paying for fastmail, so it feels better - less like something is reading your emails.