How to remove "Your McAfee Has Expired" pop-up notifications on Mac Studio?

I followed this here from your response to my same question, Grant. I have the notifications turned off, so they're not popping up anymore, but isn't there something malicious still installed somewhere on my HD?

@russraman response just above suggested changes to Safari preferences, but the suggested chain was not quite correct:

Safari > Preferences > Websites > Notifications

select each web site in turn and (Remove).

system preferences > Notifications ...

Look down the list on the left. If any are BLANK or not familiar select and disable notifications.

Be ruthless. Any mistakes can easily be turned back on later.

ah Ventura.

for 17 versions of MacOS, things operated in a similar way, and advice we provided worked for at least several recent versions of MacOS. Then came Ventura.

The internals are very almost identical, but everything you knew about the interface has changed in arbitrary and capricious ways.