Did you chose physical certificate or e-cert? I wonder if they will provide you the physical one right on spot after the ceremony or you will have to wait for the link. I heard a lot of mishap about downloading e-cert after oath. Like there's no ending of worries from our end.It's on the September tab of our Canadavisa forum. Please check.
Very certain that it didn't; I think IRCC is clearing out oaths in big chunks and we hit them with a GCMS just prior to it.
Also: my invitation email came just now and it's an in-person ceremony in Mississauga.