Those dates are not accurate dates . Those are based on timeline. Sometimes they start processing on your application part before or sometime after those dates .
I believe that's a myth - handling GCMS notes is in a different team's wheelhouse that has nothing to do with processing officers.
No—requesting GCMS notes or submitting a webform to Immigration, Refugees and Citizenship Canada does not slow down the processing of your application. These requests are handled by separate administrative or access-to-information teams, not the officers actively assessing your file, so they don’t “pull” an officer away from processing your case. GCMS notes are essentially a snapshot of your file at the time they’re generated, and webforms are routed to support channels that may add information or clarification to your application if needed. While sending excessive or repetitive webforms without new information isn’t useful—and may just result in generic replies—it doesn’t create friction that delays your application. The overall processing speed is driven by factors like background checks, workload distribution, and application complexity, not by how often you request updates.