Check out this recent lawsuit that an Applicant won against IRCC for not approving his application for more than 3.5 years. IRCC acts real stupid. They should work on their backlog before moving on to new applications. How can they be so dumb. If they work in sequence of application they would have never faced such issues.
https://decisions.fct-cf.gc.ca/fc-cf/decisions/en/item/499923/index.do
https://decisions.fct-cf.gc.ca/fc-cf/decisions/en/item/499923/index.do