I think it will really depend on the agent processing your file.
Generally, when you know that your situation can be problematic or your intentions questionable, you should always add a letter of explanation, at your own initiative.
You can find in this forum examples of applicants whose applications were denied because of a lack of proof, others had additional document requests before a decision was made, and others were luckier and didn't have any problem.
I, personally left Quebec before applying. And when I applied, I explained in my LOE why, in my opinion, they have no reason to think that this is just a shortcut to avoid Quebec's long and fastidious procedures.
This is a critical point, especially since people are starting to protest against everything that is happening to Quebec's applicants.
I wish you success, I really do, but from my point of view, you should send them a letter explaining your situation, and trying to prove your intentions. Just to not take any unnecessary risk!
It's not going to be easy since you still live and work there, but since your application hasn't been rejected so far, I guess it's a good sign.
Good luck buddy!