Block category: Common
The Common category includes the following blocks: Paragraph, image, headings, list, gallery, quote...
Block category: Embeds
This post tests various embed blocks:
https://twitter.com/WordPress/status/1057136472321613824
...
Block category: Widgets
The shortcode widget:
The Archive Widget:
The same Archive widget but as a dropdown:
...
Block category: Layout Elements
The Layout Elements category includes the following blocks: Group, Button, Columns, Media & Te...
Block category: Formatting
The formatting category includes the following blocks:
The code block starts with
<!-- wp:cod...
