I am under the impression that after PR you can live in any province. Moreover your friend had family and job in Quebec and was still asked. Quite surprising
Well. here is the thing. We have two separate concerns here. One is before getting PR and the other is after getting PR.
Therefore, after permanent residency, yes you are right. I just made a small comment on what I have heard about your questions from a few immigrant agents and people who were asked about "why they are living there if they were not supposed to" when renewing their pr card in a province other than the province of issuance of their pr card, in other words, the province where they had got their pr card from. If you search here in the forum you will find people warning about that as well because they got asked about that. I just repeated what they said.
Before getting pr, which is your case right? you
might have issues. That's what I was talking about.
Getting back to my friend's case, he was a temporary resident in Quebec when he applied through EE. That's why he got asked.
With all due respect, unsure where I said otherwise which confused you. Anyway, it is up to you. I only tried to answer your questions by telling you the experiences I know about others. It is not my place to tell you what to do or how to proceed and also I don't want to undermine your plans at all. Feel free to do whatever you want to. I wish you the best of luck.