When I do #a11y reviews I like to guess what might be the most problematic section and jump right to it, which was the accordion in the #Figma Sites demo.

Found a treasure trove of issues: Expand/collapse actions that are <div>’s, no aria-expanded attribute, <div>'s with aria-label’s… and last characters wrapped in <span>’s, for some reason?

@aardrian has a longer list of issues on his blog, but this screenshot I took during the keynote is a good snapshot to keep IMO. https://adrianroselli.com/2025/05/do-not-publish-your-designs-on-the-web-with-figma-sites.html