No, it’s not phishing, it’s legit, the header match with google and the link goes to https://accounts.google.com/AccountChooser/signinchooser?continue=https%3A%2F%2Fadmin.google.com%2Fac%2Fac%2Falert%2Fdetails%3FalertId%3D3…
Why not just write the message there instead of letting me login to watch the important notification???
google currents sounds like some sort of phenomenon, like an ocean current that pushes stuff onto the shore where we discover it.