I believe the most important cause of alert fatigue come from being notified for irrelevant events. The risk just being that "receiving an alert" will not be asociated by team members, to the idea something really happened and should be investigated quickly.
My wish would be to have the option to mark any acked alerts as being either a false or true positive with a kind of drop down field.
This way, in a second time, my team and I would have the chance to export the list of alerts where the monitor that triggered it should be reviewed.
Is that wish already feasible in OpsGenie? 🙏