Yes, and no. Google doesn’t allow homepages to earn any rich results anymore so don’t bother with adding it - sorry single-page applications. Luckily, if you add FAQs to a product or service page, you can mark it up and earn FAQ rich results as long as it's not overly promotional. Keep in mind that you likely won’t get both the FAQ rich result combined with other markups like product review or offer – although that would be one super snippet.