The employer of my wife is sponsoring her a green card (Category EB3). Because this category is currently on “Current”, the AOS (I485) was filed immediately. All 4 petitions (I140 / I485 / I767 / I131) were received by USCIS on April 11, 2018. I have found different information as to whether the petitions I140 and I485 are being processed simultaneously or in succession.
Now my wife has already gotten their Biometrics appointment. The Biometrics belong to I485. Is it normal that this appointment takes place so early or does that mean that the I485 is actually being processed at the same time?