Small update: I shook my husband out of bed since I was freaking out and told him we forgot to file a form. We went to the office and opened all the boxes with documents and notices from USCIS, and surprise we have the notice for the I-751 form 😅. The problem was whenever I log into our USCIS account all the forms we ever filled show up, except the 751 so I think I had a lapse of memory.
I just used USCIS Case Status Online using the receipt number from that file, and it only mentioned the biometrics. "Case Was Updated To Show Fingerprints Were Taken". No pending or any other update. And the case still won't appear on my profile. 🤷♀️