Samsung calendar widget lock screen
When a calendar event happens, Samsung Galaxy Tab A8 (Android 14) flashes the whole screen blue with a ping. It’s a great reminder for when you are distracted and coding.
likely due to Samsung’s One UI customizations. Samsung adds additional features and tweaks to Android, and one of those could be a visual notification effect for calendar events, like the blue flash.
My Pixel 5 doesn’t seem to have this. (Android 14)