It's a good change only if you are permanently logged in to google services, which is probably why it seemed like a great idea to the Chrome team, who probably have no idea how much distrust Google has started to build up. It moves the browser closer to an app runner for google services - I'd understand that if this was on Chrome OS or a specific 'Google' app, but in a general purpose browser the browser chrome should never indicate login state about specific websites, nor should my browser be logging in to google itself. It was bad enough when that was a choice for users, now it is one policy change away from being obligatory.

This is how we end up living in a world where google has access to all your data. I've switched browsers due to the move, not just because of this specific action, but because combined with all the other dark patterns Google has engaged in recently, and their clear moves to abuse their monopoly in search, it tipped me over the edge.

I no longer use google search (have been using ddg for a while), and now no longer use google browsers as a result of their disregard for user privacy.