Thank you for this info! When I looked into FOIA request, I came across this related to USCIS: https://www.foia.gov/agency-search.html?id=da7c02bc-3ae8-4a09-ad94-48fdbb2bcc6f&type=component
I already filed 2 online service requests due to the case being outside of normal processing times, but still nothing.
That's going to be my next step! I have to travel out of the country in April.... so I will do this after that if I still hear nothing.