Link posts to the author
How do you connect a CPT (custom post type) to the author
You need to know what post type it is
https://wpnews.nl/wp-tool/kadence-blocks/
Add some code to your website
function add_author_support_to_posts() {
add_post_type_support( 'wp-tool', 'author' );
}
add_action( 'init', 'add_author_support_to_posts' );
Check support for authors
Don’t forget to check “support for authors” with the CPT. Whatever plug-in you use to create a custom post, there is always the option to check authors.
The author is now at the bottom of every custom post
Every custom post of this type now contains at the bottom the link to the author (see the illustration at author). From this moment on, that link is automatic when creating a post. You can also assign the mail to another author.

If the author is limited to editing only their posts only.
It is essential for users to have a specific user role that allows them to edit only their posts. Additionally, you can modify an existing user role using an appropriate plugin to meet your needs.

