Reached out to live agent via EMMA chat today (after 5 days of not reaching out). Finally got receipt numbers for I-131, I-765, and I-485 applications. Based on the sequencing, I could figure out the receipt number for my I-140 application, as well as my spouse's I-131, I-765, and I-485 applications.
All 3 of my applications: I-131, I-765, and I-485 show the same status, which is
Form G-28 Was Rejected Because It Was Improperly Filed
On February 12, 2021, we rejected your Form G-28, Notice of Entry of Appearance as Attorney or Accredited Representative, Receipt Number SRC21901248XX, because it was not filed correctly. If you wish to be represented, please contact your attorney or accredited representative to submit a new Form G-28 to the USCIS location where your case is pending. For more information on filing a Form G-28, please visit http://www.uscis.gov/forms/filing-your-form-g-28. If you move, go to www.uscis.gov/addresschange to give us your new mailing address.