WPGraphQL Enable All Post Types
This FREE plugin from @tylbar automatically adds ALL registered post types to the WPGraphQL Schema
Community PluginView Plugin on Github
This plugin adds all registered custom post types to WP GraphQL
Note that this plugin uses the post type name as the GraphQL single and plural field names. If you have translations for your post type names and view the schema in a specific language, this plugin may register those fields based on the current language which will result in an inconsistent schema.