This post tests various embed blocks:

The shortcode widget: The Archive Widget: The same Archive widget but as a dropdown: The Category widget block has an additional option for showing category hierarchies: The Latest Comments widget can display or hide the avatars, the date, and the comment excerpt: Here is

The formatting category includes the following blocks: The classic block can have almost anything in it. a heading The custom HTML block lets you put HTML that isn’t configured like blocks in it. (this div has a width of 45%) The preformatted block.The Road