I reluctantly disabled all government alerts on my phone a few years ago because despite theoretically having multiple levels of importance (minor alerts, major alerts, critical alerts), apparently they weren't categorizing the alerts when they sent them out so I kept receiving all alerts, even minor ones and alerts for things happening far from where I live, and to make matters worse they overrode do not disturb. Hopefully they've improved the system by now, but I haven't thought to check until this conversation thread.