Remove Shortcut Banner Notification?

Hey everybody, like the title suggests I am trying to figure out how to remove those annoying banner notifications I get every time I open an app with a custom icon. I tried all tricks I saw online for iOS 16, but apparently the 16.2 update broke/patched any methods I found online so I am turning to you guys as I am out of ideas.

My iOS version is 16.3.1 and I’m a new Apple User so I am not that familiar with the processes so I’m very sorry if my questions sound stupid hahah.

Thank you a lot in advance!