How do I get my banner notifications do not work on my IphoneSE?

Hey dianet256,

Are banner style notifications not working for every app, or only specific apps?

We recommend checking your notification alert styles: Use notifications on your iPhone or iPad - Apple Support

1. "Go to Settings and tap Notifications.
2. Select an app under Notification Style. 
3. Under Alerts, choose the alert style that you want. If you turn on Allow Notifications, choose when you want the notifications delivered—immediately or in the scheduled notification summary.

With iOS 15 and iPadOS 15 or later, you can turn on Critical Alerts for supported apps so notifications come through even if your iPhone is muted or you have a Focus set up."

Let us know if this helps! Take care.