if it makes you feel any better, I filed in October 2019 and received an RFE earlier this year as well asking for evidence from date of marriage till now lol
Good news is, it seems approval is fast if you send in what was requested. This was my timeline after the RFE:
03-27-2023: USCIS Requested additional evidence "as it has been several years since you've submitted this petition"
05-13-2023: Sent RFE response via USPS certified Priority mail
05-17-2023: USCIS received RFE packet
05-19-2023: USCIS case status updated to “New Card is Being Produced"
05-22-2023: USCIS case status updated to “Case Was Approved"
05-24-2023: USCIS case status updated to reflect new Green Card was mailed
05-25-2023: USCIS case status updated to “Card Was Delivered To Me By The Post Office"