What does Huawei mobile phone bubble notification mean?

The bubble notification just popped up in the upper bar. In the case of landscape screen and full screen, some APP notifications will have a blue icon behind the floating window, and clicking it is the small window mode.

For bubble notification closing method:

Tools/raw materials: Glory X20, EMUI system 10. 1.

1. Step 1: Go to Huawei's mobile phone desktop and click Settings.

2. Step 2: After entering Huawei mobile phone settings, click System and Update.

3. Step 3: After entering Huawei's mobile phone system and updating it, click the developer option.

4. Step 4: After entering the developer option, click to close the bubble notification.

5. Step 5: After clicking Close, Huawei's mobile phone bubble notification will be closed and used as needed.