Push notification not display as banner

Dears
I followed the exact reference: https://capacitorjs.com/docs/guides/push-notifications-firebase

to set up the firebase push message

but it just displays on the status bar as an icon

I want it to be displayed as a banner too

any help?

You should set the notification permission for the app in the device’s settings menu.
Otherwise, the notification icon is displayed only in the status bar.