Adjustment of Status - I-485

Here is what i found.

Social Security
Apply For Your Social Security Number While Applying Your Work Permit
If you currently reside in the United States and plan to apply for work authorization from the Department of Homeland Security (DHS), you will also need a Social Security Number (SSN) to allow employers to report your earnings to the U.S. government

To save you a trip to the Social Security Office you can now apply for your SSN and card (SSN card) on the same application form you will use to apply for permission to work legally in the United States (U.S.). That application is the Department of Homeland Security’s (DHS) U.S. Citizenship and Immigration Services (USCIS) Form I-765, Application for Employment Authorization. If USCIS approves your application to work in the U.S. and you completed the section on the application to request an SSN card, then USCIS will send SSA the data we need to issue your SSN card. If you already have an SSN and you requested an SSN card on the I-765 application, we will issue you a replacement SSN card.

If USCIS approves your application, you will receive two documents – your Employment Authorization Document (EAD), also known as the “USCIS I-766 card” or “work permit”, and in another envelope your SSN card. We will mail your SSN card to the address you listed on your I-765 application. You should receive your SSN card no later than 7 business days after you receive your EAD from USCIS.

If You Do Not Receive Your SSN Card that You Requested on Your I-765 – Visit an SSA Office
Please call or visit an SSA office if you do not receive your SSN card within 7 business
days after receiving your EAD. Please bring this flyer and your EAD as it may help us answer your questions.

My question still is: As anyone automatically received SSN in their mail lately without going in in-person to apply?
Just kinda curious.