You probably mean point 3.3. Described here https://rankmath.com/kb/breadcrumbs/

Theme authors can ensure that their themes come with native support for Rank Math’s breadcrumbs feature. To register theme support, theme authors should include the following code to their theme’s functions.php file or attach it to the hook 'after_setup_theme'.

/**

* Register theme support for Rank Math breadcrumbs

*/

add_theme_support( 'rank-math-breadcrumbs' );

Yes, please I was looking for this. In the meantime I found this for anyone interested:

Please copy this file woocommerce/global/breadcrumb.php from the parent theme to the child theme keeping the same route. https://monosnap.com/file/qodfeNwVQpaXb9EEfQiRjQM6M3gAnF

Add the code:

if ( function_exists('rank_math_the_breadcrumbs') ) {

rank_math_the_breadcrumbs();

return;

}

Everything would work: https://monosnap.com/file/PEgzv0xdK3v677VyXegZI9EQv9B17Q

If you have any questions please feel free to contact us.

This is a must as the rank math plugin is far more implemented now than yoast