Will players score update on Google play without logging in?

I contacted dev console's online chat and asked "if the player is not logged into Google Play Game, will their score still update on my leaderboard?"

That was 4 hours ago, they said they have to figure it out and get back to me.

Does anyone here know if it will update? The answer is going to change how/when the player logs in.

Thanks for any help on this.

no

Yeah, i finally found an answer. Google dev chat didn't even know.

Now if i can get google game leaderboards to stop muting my music and sounds....