I've taken a look at Frost and its demo sites every month or so, and I would not have paid for the theme while it continued to have so many layout issues on narrower screens. Some are core-/Gutenberg-related, like the impossible-to-close burger menu on a touch screen (a fix has finally been merged in Gutenberg, thankfully), but it's not unreasonable to expect basic padding/margins between stacked elements on a site when it's a demonstration of the product itself.