I've gotten that push notifications twice now on Android, I have 360 on win 11 desktop and android mobile but make no mistake, I am no fan any longer, I've disabled reports, But still get that junk. Norton you are trying to strengthen my loyalty for your past & present questionable actions, but any loyalty is all gone. I used you for many many years, but with the credit card required, the lifelock nonsense, crypto mining, add-ons to buy and ever elvolving spammy features like Software updater, Dark Web monitoring, Toolbar, etc..., Sorry Norton your hooks aren't working, Neither are the "Thank you for Supporting Norton 360" pleas, To show appreciation, Reverse course back to when you were industry leader. Now you are but a shadow of your once legacy company. I'm switching to an alternative when my time is up, free product from my ISP, not as good, but at least I won't pay to be constantly assualted for cash.
Push notifications on Android do not use email addresses. So there is nothing that can be checked from the link about email addresses.
You can verify if an email came from Norton here. https://support.norton.com/sp/en/us/home/current/solutions/v71088498
If you need additional help you can call support and they can do further research for you. They helped me last year with a scam email.