US Immigration from El Salvador

My husband and I filed our I-485 in June along with our applications for work authorization and advanced parole. Today we received our interview date for the I-485 (we will interview on Oct. 16). We weren't expecting to have the interview this year since we only filed three months ago. We're super happy, just surprised! Is anyone else having a similar experience?

Has anyone else been stuck on ready status after interview? My husband had his interview on 8/19/2020 they did not request any other information. On 8/20/2020 his case status went to AP for a few hours than went back to ready by end of the day. Then on 8/25/2020 it was last updated and has been at ready and unchanged ever since. Should I be worry at this point?

Hoping someone has been in a similar situation and can give me a little peace of mind.
My husband had his interview on 8/19/2020, he was told no further documents were needed and handed a white slip saying congratulations you ve been approved.
On the CEAC website his case status changed to AP on 8/20/2020, but by the end of the day it changed back to ready. Then on 8/25/2020 the case was last updated but it is and has been still stuck at ready. Should I be worried or is this normal? I know with COVID19 it has really delayed things, but I was hoping this past week we would hear something.

As you can see in my other recent posts, I'm helping a friend fill in her N-400 application and have a few questions. This one is about the change of address. She is a long-term permanent resident who has been eligible to naturalize for over a decade but never got around to it. She has moved several times and has not filed a change of address form with USCIS for her last few residences. I was just wondering if the right scenario from here on out is to update her address on file with the AR-11, listing her current address as the new address, where she moved from as the previous address, and then from there the form has no way to list anything prior. I get the logic that the person should be updating every time, but will the previous address on the form need to match what's on file with USCIS? I hope not.

And just checking in to make sure that this should be done before filing the N-400, or would simply filing for naturalization serve as a change to update the address within the N-400 itself instead of doing so separately? Thank you!

I'm helping a friend apply for her N-400 and in reading the naturalization application, instructions, and document checklist, it's not clear to me if the applicant can submit only the divorce decree or would also require the marriage certificate (despite the marriage ending in divorce and the fact that the divorce decree could only come from them having been married in the first place). She has the divorce decree but obtaining the marriage certificate would be cumbersome. Thank you!