According to https://travel.state.gov/content/dam/visas/Statistics/Immigrant-Statistics/WaitingList/WaitingListItem_2021vF.pdf
Montreal had 553 pending EB1 and 559 pending EB2 as of November 1st, 2021.
Since then, Montreal only processed 122 EB1 and 183 EB2.
Even with increasing capacity to 80 cases per month for EB2, it will take a minimum of 5 months just to get to November 2021.
That's without considering they have some sort of prioritization system capturing a share of the EB visas processed.