The Title Heading widget will look like this, if using WordPress 5.8 or later:

Or it may look like this if you have classic widgets enabled or have WordPress 5.7 or earlier:

The Title Heading Widget will allow you to add titles inside of your sidebars.

It is possible to use this widget in other areas, but it may not display correctly.

The Title Heading Widget has the following settings:

The settings will look like this, if using WordPress 5.8 or later:

Or the settings may look like this if you have classic widgets enabled, or have WordPress 5.7 or earlier:

Now on to how set up this widget.

The "Title" setting is the title you want displayed.

The "Style" setting is style of the header you would like to use.

You can use this widget before one of the Post Block widgets to create a section. For example: If you want to create a "Sports" section to display the posts from the "sports" category in the sidebar, then you would place this widget first, then add a horizontal or vertical post listing widget below this widget. Then you would set the title of this widget to "Sports" and would set the category of the post listing widget category to "Sports".

See the "All Default Title Bar Styles" help for the various styles you can choose from.