The Tags Block allows you to display a list of the Post’s Tags. Each Tag is separated by a comma and will include a link to the individual Tag Archive page. Although you can add this block into your normal Page or Post content, it will be more useful adding it to your theme’s templates using the Full Site Editor.
Once you've added the block, there are further options available in the Settings Sidebar. You can change the Text and Background colours, and you can also change various Typography settings like Font size, Appearance, Decoration, Line height, Letter case & Letter spacing.
Clicking on the Prefix and Suffix placeholders within the block allow you to add some extra text before and after the list of Tags.