Query loop current post author

The current post author means the author of the page which has the query loop, so if the page’s author is you, then the query loop will return all posts that are published by you.

To achieve what you want, it will require custom code to alter the query loop.

Try this:

1. Add this PHP code, and change the user role from administrator to your custom user role.

add_filter( 'generateblocks_query_loop_args', function( $query_args, $attributes ) {
    // Check if the class name contains 'current-user-posts' and not in admin area
    if ( ! is_admin() && ! empty( $attributes['className'] ) && strpos( $attributes['className'], 'current-user-posts' ) !== false ) {
        // Check if the user is logged in
        if ( is_user_logged_in() ) {
            $current_user = wp_get_current_user();

            // Check if the user is an administrator
            if ( in_array( 'administrator', (array) $current_user->roles ) ) {
                $user_id = $current_user->ID;

                // Modify the query arguments to show all posts
                return array_merge( $query_args, array(
                    'author' => $user_id,
                ) );
            }
        }
    }

    // If conditions are not met, return the unmodified query arguments
    return $query_args;
}, 10, 2 );

2. Add this class current-user-posts to the grid block of the query loop.
Adding CSS class(es): https://wordpress.com/support/wordpress-editor/adding-additional-css-classes-to-blocks/

3. Remove all parameters from the query loop, only keep the post type and posts per page.

You are welcome   🙂