She looks similar to the other Elizabeths, but tbh I think if she's cast it'll have more to do with her being the favorite actress of Netflix right now than true "casting". And there are maaaaany reasons to be worried about any Netflix Austen adaptations.

I saw her in Stranger Things S1, when she was a kid, and the first Enola Holmes movie (meh), but the hypothetical reminds me of how Emma Watson got cast in All The Roles after she was Hermione - not necessarily because she was a great "Belle" in BatB, e.g., but because she was Emma Watson. Sigh.