Your timeline is similar to mine: I-130 also submitted in May 21, at Potomac Service Center, and has been "actively reviewing" since 23 Sep 21, no further updates since then.
My husband is from the UK and we're also both UK residents (I'm the USC). Fortunately we don't have the drama of trying to time our move with a new job, I hope this works out for you both.
Once you're past the I-130 (hopefully soon) were you expecting any difficulty with the I-864 since your wife is living overseas, assuming you're not using a co-sponsor?