I am a single applicant as well. Only 2 trips to other countries. It is still IP1. I am seeing lot of October AOR are getting to IP2.You are in IP1. My timeline is similar. AOR 23 Nov. Medicals changed and BG updated to the same as yours on 8 Dec. No updates ever since.
I e-mailed IRCC to ask about the status of my application yesterday and whether it has been transferred to a visa office, yet. They replied that it's still in Sydney Centralized Intake Office. So I have been in IP1 for 7 weeks. It is a bit weird when compared with most of the other people here.
I am a single applicant, kind of a large travel history but short trips for vacation and work only. What about you?