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?
Email templates are ubiquitous and can easily insert names and any other variable.
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