As promised, Google has added an option to Chrome Settings in version 70 that will ship in mid-October, which, when turned off when you sign into Google sites like Gmail you won’t be signed into Chrome browser. ‘Allow Chrome Sign-in’ is the new control added by Chromium team and is enabled by default, you can disable it by visiting Google browser settings page, here is how you can do that in Chrome 70.
Turn off Chrome Sign-in option in Chrome 70 Settings
1. Click on Chrome menu > Settings
2. Click on Advanced, toggle ‘Allow Chrome Sign-in’ switch
3. You’ll be prompted to restart Chrome to apply the change, then click Relaunch.
The question is how long will you remember to turn off Chrome Sign-in setting when you reinstall Windows or clean uninstall Chrome next time? Do you have an answer to this?
Of course, there is a chance for new Chrome Setting to strike when you see Google Account picture on Chrome nav toolbar.
The setting shouldn’t have been enabled by default in first place in Chrome browser.
Maybe Google has designed this feature for Chromebook users who share their devices in mind, what about majority people who use Chrome on Mac, Linux, and Windows and don’t share their device? Does Google have a number to back this?
What’s your take on Registry trick mentioned in this article Chrome 69: Disable browser Auto Sign In and Sync? And it’s true that you shouldn’t depend on flags like identity consistency which works for a couple of versions only and disappear after that.
This will not work if you have not first logged out of your Google account(s).
I do think next restart signs users out of Chrome.