An update on my case:
It took 21 days from DOS Sent Favorable Recommendation to USCIS final approval in Sep 2023.
Hopefully, this will help.
I-613->DOS favorable April 2022-Sep 2023
Ironically I had to leave the US to fulfill the 2 year requirement and literally, I don't need the approval. My family in the US received the approval notice on the same day for my immigrant visa interview.