Congratulations on your I 485 approval.
Your case seems close to mine i.e. my PD is 29-Jun-2012 and I filed for on 26-Oct-2020 for I485 along with I765 & I131.
Though, I got my 765 & 131 approved in Jan-21, I have not seen any change on my 485 after fingerprints were taken on 7-Jan-21.
Can I ask, did your case moved to any field office? If so, which field office is that?
I am in Bay Area and just wanted to get some info.. since USCIS isn't giving any details..