Meta Box

AI helped me figure it out:

{this.metabox.process.process_item.0.process_step}

the loop looks like this:

{#loop this.metabox.process.process_item as process_item}
<div role="listitem" class="bridal-process__item" >
<span class="bridal-process__number">{process_item.order_step}</span>
<p class="bridal-process__label">{process_item.process_step}</p>
</div>
{/loop}