re: 1) logging into a Google domain in a chrome browser, logs the browser into the Google account [auto-profile-login] [gSignin], and by default, syncs browser history to the cloud, cloud-readable [gSync]. Google's own docs describe that you can add a passphrase "so Google can't read it". While Google can read it, they have an arguable duty to shareholders to read it.

- [auto-profile-login]: https://news.ycombinator.com/item?id=26200298

- [gSignin]: https://support.google.com/chrome/answer/185277

- [gSync]: https://support.google.com/chrome/answer/165139?hl=en

> Keep your info private with a passphrase With a passphrase, you can use Google's cloud to store and sync your Chrome data without letting Google read it.

Thank you appealing to reasonable expectations, but Google, as their own docs make clear, ties uses together quite aggressively^W conveniently.

2) Whatabout Apple and Safari? Apple doesn't offer an email service supported in part by scanning email content for ads.

Apple has gone to some lengths to engineer a system where they can credibly(-ish) claim to "protect your privacy when you browse the web in Safari," [Apple private relay].

- [Apple private relay]: https://support.apple.com/en-us/102602

Google re-engineers their browser to prevent ad-blockers from working.