I saw it again tonight, and holy moley…it was shot in 1.66:1. A result of the European sensibility of dp Lucasz Zal (Ida, Cold War, The Zone of Interest). Chloe Zhao agreed, I’m guessing, because 1.66 is an older a.r. (European “flat”, common in France and England in the mid 20th Century) and this seemed to vaguely augment the Elizabethan vibe.
I’ll be very surprised if a single film critic or puff-piece profiler has mentioned this. One reason is that 98% of your mainstream media kiss-assers don’t even know what a 1.66 aspect ratio is.