Show full post on archive page instead of exerpt

I’m helping a friend update his website but the theme is showing the Excerpt on a category archive page instead of the full blog posts.

When I go into content.php, this is what I get…

<section class="article__content">
        <?php echo rosa_lite_better_excerpt(); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
    </section>

    <a href="<?php the_permalink(); ?>" class="read-more-button"><?php esc_html_e( 'Read more', 'rosa-lite' ) ?></a>

</div><!-- .article__body -->

Thanks in advance