Render select manualty instead of form_row o form_widget

form.html.twig

<select id="{{ form.mediaFiles.vars.id }}" name="{{ form.mediaFiles.vars.full_name }}" multiple class="form-select">
    {% if form.mediaFiles.vars.placeholder is defined and form.mediaFiles.vars.placeholder %}
        <option value="">{{ form.mediaFiles.vars.placeholder }}</option>
    {% endif %}

    {% for choice in form.mediaFiles.vars.choices %}
        <option value="{{ choice.value }}" {% if choice.value in form.mediaFiles.vars.data %}selected{% endif %}>
            {{ choice.label }}
        </option>
    {% endfor %}
</select>