I’m in the same position, I really like the idea of the FHEV but having friends with the Sync4 system I decided that as it wasn’t fitted I’d either wait for the MY24 version or look around for something else.
Given the post above showing a car to be built on June 15th, almost a month after Ford said the problem was fixed (April 20th) has still been recalled I’m glad I cancelled the order.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!