Get ACF oEmbed URL via Timber

single.twig

{# the simple way to get the URL from an oEmbed field #}
{% if item.meta('oembed') %}
  <div class="category-featured-post">
    {% set videoSrc = item.meta('oembed')|split("src=") %}
    {% set videoUrl = videoSrc[1]|split('"') %}
    {{ videoUrl[1] }}
  </div>
{% endif %}