Finally off the hook! USCIS approved my waiver on July 6th.
**Case Background**
Waiver basis- No Objection Statement
Country of Citizenship- India
US government funding: Yes, I was funded by the National Institutes of Health (NIH)
**Recap of my timeline for the reference of others**
Oct 20, 2021- Docs delivered at St. Louis lockbox by USPS Express Mail
Oct 29, 2021- Indian embassy in DC emailed NOS to the Waiver Review Division (WRD)
Feb 10, 2022- All docs marked as "Received" on the DoS portal
April 22, 2022- DoS requested Sponsor Views from the NIH
April 27, 2022- DoS "Received" Sponsor Views
May 12, 2022- DoS issued a "Favorable" recommendation, and forwarded the case electronically to the USCIS Vermont Service Center
June 25, 2022- Received "Receipt Notice" from the USCIS. As per the Receipt Notice, USCIS received my case on May 23, 2022
July 6, 2022- USCIS approved the case and mailed notice
Good luck everyone! It's a game of waiting..