Sharing my timeline here...
AOR - Sept 27
Med - Nov 09
ADR - Feb 28 (RPRF and a clarification letter)
Review of Additional Documents - March 8. ("We are reviewing the additional documents you provided")
Something weird happened though. The officer asked for a clarification letter saying that my education/personal records suggest that I was in Hong Kong for 3 years, but I have never been to that country. The only link I have to HK is that I worked remotely for a company located there. All good I said, I wrote a letter explaining the situation and attached a letter from the company backing up everything, but when I tried to upload the letter there was no "additional document" field available in my profile (there was for the RPRF). After trying multiple times I found out that refreshing the page multiple times would show me the field to upload the clarification letter, but it had expired Feb the 27th! A day before the request letter was even issued. I was still able to upload the letter and I got 2 confirmation messages saying "We got your document" so I hope they actually got both of them. The only thing I can think of is that the officer realized he/she was confused after submitting the request letter and disabled the ADR field for the clarification letter setting it to a past date.
PS. I was exempt from Biometrics