Has the web figured out ad serving? I was under the impression that malvertising was still very much an issue and even best-in-class security doesn't outright s

Has the web figured out ad serving? I was under the impression that malvertising was still very much an issue and even best-in-class security doesn't outright stop things like cryptominers, but instead simply prevents them from consuming too many resources. It's better than wherever MS used here, but I'm definitely not comfortable using the web without an adblocker.