I do not know if this is true or some might disagree with me, but thats fine..
My observation is IRCC has the least priority for the applications past the timeline of 6 months, cuz if they set the past timeline applications priority, they will lose the average number of applications processed rate before the 6 month timeline, they are literally dusted off and stored in until someone takes a personal interest to help these applications after our numerous efforts to contact them.
Adding this Covid-19 situation is like fuel to the fire. It might get even worse before we all act and continuously contact IRCC. Some people advise be patient and think positively, but sorry. You snooze you lose. Communicate with IRCC on twitter.
https://twitter.com/CitImmCanada