Hello
I was in same situation, I called my area's MP and requested him to email IRCC on my behalf to check the status of my file.
And I got the AOR within 2 days.
PS - I am not sure that AOR mail I got was a result of MP's email request or it was because regular processing time but try with your MP at least you get some update about your file.
After I received AOR on Sept 1, 2022. I didn't hear anything from them as well. Our application was submitted October 13, 2021