Great news, I just got my oath invation for 05/21 group, around 2 month after DM.
My time line:
Vancouver Office
Application received: April 25, 2019
Test Date: Jan,26, 2021
FP Request: Feb 11th, 2021
Decision Made: March 22, 2021
Oath invatation: May 6,2021
Oath date: May 21,2021