Notifications are alerts from apps, system, and other senders.
Windows 11 puts notifications in the Notification Center (Win+N) on the taskbar corner where you can view them instantly from the flyout.
You can select a notification in the Notification Center to read more or take action. Don't want to take any action? To clear a specific notification, click/tap the X next to the notification you want to clear. If you want to clear all your notifications, click/tap on the Clear all button.
See also:
How to open Notification Center and Quick Settings
How to open Notification Center and Quick Settings

Find your notifications
Find app notifications from the taskbar in Windows 11, and in Windows 10, use quick actions to change settings quickly as well.

This tutorial will show you how to open the Notification Center in Windows 11.
Here's How:
1 Perform one of the following actions: (see screenshot below)
- Press the Win+N keys.
- Click/tap on the date and time (clock) on the taskbar corner.
- On a touchscreen device, swipe in from the right edge of the screen.
That's it,
Shawn Brink