Add views machine name as a class in twig [drupal 8 or 9]

With this views-view.html.twig file in your theme, you add the machine name of the view to your container class.

{%
  set classes = [
    dom_id ? 'js-view-dom-id-' ~ dom_id,
    id
  ]
%}
<div{{ attributes.addClass(classes) }}>
  {{ title_prefix }}
  {{ title }}
  {{ title_suffix }}
  {% if header %}
    <header>
      {{ header }}
    </header>
  {% endif %}

  {{ exposed }}
  {{ attachment_before }}

  {% if rows -%}
    {{ rows }}
  {% elseif empty -%}
    {{ empty }}
  {% endif %}
  {{ pager }}

  {{ attachment_after }}
  {{ more }}

  {% if footer %}
    <footer>
      {{ footer }}
    </footer>
  {% endif %}

  {{ feed_icons }}
</div>