Hello, I have a similar situation, I filed my I-751 in August 2021 and the case is still pending. My N-400 form I submitted online on August 13, 2022, they reused my biometric information on October 2021(same thing happened with my I-751). I check every day but no news yet. I read cases similar to ours and the common aspect is the delay in the approval of I-751.