How to limit next & prev links to current post’s category

Hi there,

Try adding this PHP snippet:

add_action( 'after_setup_theme', 'tu_category_specific_post_nav' );
function tu_category_specific_post_nav() {
    add_filter( 'generate_category_post_navigation', '__return_true' );
}

Thanks. Add snippet to what, single.php?

You can add it using one of these methods: https://docs.generatepress.com/article/adding-php/