What is the purpose of the gray compornnt tab

I have one question
When you move the cursor to the second compornent, a gray tab will appear
What is the purpose of the gray compornnt tab

Hi caos,

This gray tooltip allows you to move, delete, or interact with a component without selecting it.

By default it appears after a certain time.
But in your settings, you can make it appear every time you hover a component with the mouse cursor and have it disappear after a certain time.