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???
Were you expecting a Google employee to notice the issue, think “Uh oh, I better let Moonrise know about this!” and type out an email for you?
Do you know that’s trivial to write a marketing email like
“Dear <name placeholder>…”
I get that Google is just a startup with limited resources and can’t afford expensive marketing tools, but this is a basic feature offered in every transactional email software, even free ones
Email templates are ubiquitous and can easily insert names and any other variable.