This post edited byMiniTool Techintroduces the widgets utility of Windows 11.
It covers its definition and usage.
What Is the Windows 11 Widgets?

Moreover, you are able to customize the widgets section and let it only show the items you prefer.
However, Microsoft removed them for security concerns raised by third-party gadgets.
What Are the Popular Widgets?

Below are all widgets that are available in theWindows 11 Insider Preview build.
how to get widgets on Windows 11?
In general, it is simple.

Besides, you might hit the three dots in the top-right of each widget and manage it.
(It seems this feature is unavailable in later Windows 11 versions)
How to Disable/Enable Widgets?
Finally, lets see how to delete or re-add the Widgets icon from/to taskbar.

It is just a piece of cake.
Then, switch off Widgets to remove it from taskbar; turn on it to show Widgets on taskbar.
In the end, you oughta be aware that this is not the final version of Windows 11 widgets.
They can be different with the update of Windows 11.
Yet, even there are changes to widgets, they should be slight.