Changing category output to post titles only

I want to display only the category description and the post titles in categories. For example, here https://poiimata.com/category/%CF%80%CE%BF%CE%B9%CE%B7%CF%84%CE%AD%CF%82/christos-laskaris/

I would not like to see post intro and post featured image.

Checking my theme’s archive file does not give me any clues:

get_header(); ?>

	<section id="primary" class="content-area">
		<main id="main" class="site-main" role="main">

		<?php if ( have_posts() ) : ?>

			<header class="page-header">
				<?php
					the_archive_title( '<h1 class="page-title">', '</h1>' );
					the_archive_description( '<div class="archive-description">', '</div>' );
				?>
			</header><!-- .page-header -->

			<?php /* Start the Loop */ ?>

				<?php while ( have_posts() ) : the_post(); ?>

					<?php
						/* Include the Post-Format-specific template for the content.
						 * If you want to override this in a child theme, then include a file
						 * called content-___.php (where ___ is the Post Format name) and that will be used instead.
						 */
						get_template_part( 'content', get_post_format() );
					?>

				<?php endwhile; ?>

				<?php the_posts_navigation(); ?>

		<?php else : ?>

			<?php get_template_part( 'content', 'none' ); ?>

		<?php endif; ?>

		</main><!-- #main -->
	</section><!-- #primary -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>

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