Any idea on current Scarbro office wait time between DM and Oath?
I don't have a lot of data points to work with, but I think it depends on when you applied.
For example: I know someone who applied 1 week after us in March 2020. They finished the test in April 2021, while my wife couldn't complete hers when she was initially invited to write test in April 2021 as she was not in Canada. Instead, she wrote in August, 2021. The other person got scheduled for the oath in Dec 2021 (they found this out all the way back in July). However, my wife is scheduled for oath in Nov 2021 (her status changed in Oct 2021).
People here have reported being scheduled for oath as late as March 2022. But they are still scheduling people for oath before then. I suppose if it has been a while since you applied, they try to sneak you in, perhaps?