If the new UI is jarring I'm pretty sure you can revert to the old via chrome://flags/.
It appears judging from the responses that if you don't log in to Chrome and don't use sync deleting cookies should be enough. If youre using a public computer or someone elses device: Browse in private. So I'm used to staying logged into Chrome and thus any google service despite whatever I do with Cookies. When you sign in to your Google Account, youll stay signed in until you sign out. It's a good way to get some Chrome OS only apps on Linux Chrome. Yeah I think we are all talking at odds - I've used Chrome for years but always signed on with Sync as I have Chromebooks and Android devices also using Chrome and share bookmarks and extensions across all versions.
81 and i'm not liking the new interface, looks like firefox now. i don't sign into the browser user icon, is that what everyone refers to when signing out? not sure how people clear their history but if you do it and you have to sign out of something then it's wasn't cleared correctly or you have auto sign-in enabled. i clear the history and if i go to gmail i need to sign in again. I don't know why so many say to log out of gmail when i never do.
