Here is an article from Mcafee... we just went through this with a kid's laptop and Chrome:
You have to find and disable the push notifications for one of the sites shown on the popups. I don't recall the one the kid was seeing. But it showed on the popup AND was in the list of ALLOWED notifications under chrome setttins.
We had fully uninstalled Mcafee and reverted to Windows Defender when we bought the computer. So we knew it wasn't Mcafee doing this.
You have to find and disable the push notifications for one of the sites shown on the popups. I don't recall the one the kid was seeing. But it showed on the popup AND was in the list of ALLOWED notifications under chrome setttins.
We had fully uninstalled Mcafee and reverted to Windows Defender when we bought the computer. So we knew it wasn't Mcafee doing this.