Back button or link instead of breadcrumb

I use filters on a page instead of the regular woo product categories. So the breadcrumbs lead to the regular shop categories. No good for me. I’d like to put a back to previous page on the product detail page instead of the breadcrumb. I searched for solutions but could not make it work with the Astra theme. I have tried this code:

add_filter( 'body_class', 'custom_body_class' );

// Add link to Previous Page
// =============================================================================
function add_backbutton(){
  
  if ( x_is_product() ) {
     echo "<div class='cat-prod-link-back x-container max width'><a href='#' onClick='history.go(-1); return false;'>Back to previous page</a></div>";
  }

}
add_action('x_after_view_integrity__breadcrumbs', 'add_backbutton');