The Field block acts as a container that groups a Label block with an Input, Textarea, or Select block. It also manages the field’s name and validation rules, such as marking the field as required.
To add a Field block, create a new form and open the Block Inserter tool. Use the search bar to find the Field block and click on its icon to insert it into the editor.
You can also choose the Field block from the “Block Inserter” (+) pop-up window when you click on the (+) sign.
Detailed instructions on adding blocks
Block Settings
The Field block supports Color and Spacing settings.
Official documentation for these settings controls are available on WordPress.org: