They notified me through email. Your wife may have applied later in the evening. A lot of people who applied on May 6 have not received any update yet. You can call IRCC if you are worried. Hopefully, you will get an update soon. Good luck!
TR to PR International Grad
Applied - May 6, 2021, 3:35 pm Toronto time
Biometrics Request - Nov 2, 2021
Biometrics Submitted - Nov 3, 2021
AOR - Nov 3, 2021
Fingers crossed, PR will come soon!!!