Change widget-title from H2 to H4-5-6

I would like to change the heading tags of widget titles H2 to H3-6. On the side panel

I assume the best way to do this in Kadence is using custom code in the functions.php correct?
Something like
function widget-title( $heading ) {
$heading = ‘h3’;
return $heading;
}
add_filter( ‘Kadence_sidebar_heading’, ‘prefix_widget-title’ );

re there ready-made solutions? esirable in woocommerce.
Thanks in advance for your help!