For those who mentioned Avast, thanks for the shout out. In the free version, you can turn on Game Mode (or silent mode) to mute notifications when running a game or fullscreen app. Ads/notifications are part of how we support the Free version, but we do want to make sure they aren't too intrusive, so if anyone is seeing something specific, e.g. a certain popup appearing more often than would be normal, let me know.
Upgrading to a paid version does give you the option to remove ads
Happy to pass on some links with more info on how Avast's IDP technology works against the "new wave" of ransomware and zero-day threats, if anyone is interested, and thanks again for the mention.