wpgraft does not care that a language model wrote the HTML, or what framework it used. It reads the page as your browser rendered it: the real elements and the real computed styles on each one, at every width you ask for. It then builds that as Figma layers: frames, text, vectors and image fills, with auto layout wherever the page was genuinely laid out in rows and columns. Nothing that arrives depends on Gemini still being there.
Gemini writes the page as code, and a design review happens in Figma. wpgraft builds the rendered page into your open Figma file as layers, so it can be looked at, annotated and changed there like anything else drawn in Figma, without anyone opening the HTML.