Need to remove link from the post title, on a single post

see here:

https://kriesi.at/support/topic/remove-permanent-link-from-the-post-h1-title/#post-1220155
this to your child-theme functions.php:

function avia_default_title_filter($current_post)
{
	if(!empty($current_post['title']))
	{
		$default_heading = is_singular() ? 'h1' : 'h2';
		$args = array(
					'heading'		=> $default_heading,
					'extra_class'	=> ''
				);
		
		/**
		 * @since 4.5.5
		 * @return array
		 */
		$args = apply_filters( 'avf_customize_heading_settings', $args, 'avia_default_title_filter', array( $current_post ) );
		
		$heading = ! empty( $args['heading'] ) ? $args['heading'] : $default_heading;
		$css = ! empty( $args['extra_class'] ) ? $args['extra_class'] : '';

		$output  = "";
		$output .= "<{$heading} class='post-title entry-title {$css}' ".avia_markup_helper(array('context' => 'entry_title','echo'=>false)).">";
		$output .= is_singular() ? $current_post['title'] : "<a href='".get_permalink()."' rel='bookmark' title='". __('Permanent Link:','avia_framework')." ".$current_post['title']."'>".$current_post['title'];
		$output .= "<span class='post-format-icon minor-meta'></span>";
		$output .= is_singular() ? '' : '</a>';
		$output .= "</{$heading}>";
		$current_post['title'] = $output;
	}
	return $current_post;
}

the links on the blog are still active – only the links on single-post are influenced.
btw: you can change on that line ( ternary operator ) :

$default_heading = is_singular() ? 'h1' : 'h2';

if you like to have on single post (first tag) a h1 or whatever you like
h2 is only for blog-view (second tag in ternary operator)

And dear Mods ( and Devs ) this might be the standard behavior. It makes no sense to have a link from a post to the post itself!