You likely have an app where you have vibration notifications turned on, but nothing else. For me, it was the Target app.
Go to Settings > Screen Time > See All App & Website Activity > Day, scroll down for Notifications, and look through those to find the culprit.
You likely have an app where you have vibration notifications turned on, but nothing else. For me, it was the Target app.
Go to Settings > Screen Time > See All App & Website Activity > Day, scroll down for Notifications, and look through those to find the culprit.