Even Chrome 69 had an opt-out switch for this - chrome://flags/#account-consistency but it didn't seemingly change anything. Chrome has been updated at least 3

Even Chrome 69 had an opt-out switch for this - chrome://flags/#account-consistency but it didn't seemingly change anything. Chrome has been updated at least 3 (probably more) times since then (I'm running 70.0.3538.110 now) yet nothing has visibly changed. UPDATE: I've just stumbled upon https://www.howtogeek.com/fyi/how-to-stop-chrome-from-automatically-signing-you-into-the-browser/amp/ https://www.howtogeek.com/fyi/how-to-stop-chrome-from-automa... and found now there is a switch in the Chrome settings called "Allow Chrome sign-in" (foundable by searching), not tested it so far but hope it works.